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The San Diego Chargers added depth to their offensive line with the experienced Rex Hadnot.

Hadnot is an eight-year veteran and started all 16 games for the Arizona Cardinals last season. He is insurance if the Chargers are not comfortable with Tyronne Green at left guard who is replacing the retired Kris Dielman.

The Chargers were ravaged by injuries on the offensive line last season, so having a player like Hadnot is important.

The Chargers also announced their undrafted rookie class. Here is the list:

• Hubert Anyiam, WR Oklahoma State
• Jason Barnes, WR South Carolina
• Cordell Bell, OT Minnesota State-Mankato
• Eddie Brown, NT Texas A&M
• Charles Burton, OT Montana
• Sean Cattouse, FS Cal
• Paul Cox, WR Mississippi Valley State
• Taylor Embree, WR UCLA
• Gregory Gatson, CB Arkansas
• Nick Guess, LS Tennessee
• Logan Harrell, DE Fresno State
• Michael Harris, OT UCLA
• Michael Hayes, RB Houston
• Jarrett Lee, QB LSU
• Josh Linam, ILB Central Florida
• Mohamed Marah, FB San Jose State
• Kyle Martens, P Rice
• Phillip Payne, WR UNLV
• De'Andre Presley, CB Appalachian State
• Christian Tupou, DE USC
• Michael Willie, WR Arizona State

UPDATE: The Chargers expect fifth-round draft pick Johnnie Troutman to miss the entire season because of a torn pectoral muscle he injured two weeks ago. The Chargers knew of Troutman’s injury when they drafted him. But the team loves his long-term potential.

In a recent conference call, ESPN draft analyst Todd McShay discussed two players who the San Diego Chargers could possibly look at with the No. 18 pick: Illinois pass-rusher Whitney Mercilus and Stanford guard David DeCastro.

I think Mercilus is a player who fills a greater immediate need than DeCastro. However, DeCastro is a special talent who may be difficult for San Diego to pass up under the right circumstances. However, the Chargers do appear to be comfortable with the idea of with moving forward in the post-Kris Dielman era with Tyronne Green.

Merculis, if taken by San Diego, would immediately be given a chance to help a pass-rush that needs to be spruced up.

Here are McShay’s thoughts on Merculis: “He was relentless as a pass rusher, all over the place, flying around the field.

I don't think he's an elite athlete, but he certainly has the combination of size at 6-foot-3 1/2, 261 pounds, and the burst you look for to get after the quarterback.

Then you talk about the 16 sacks he had this past year, and nine forced fumbles. To me, that is one of the underrated statistics. I'm not a big stat guy, but I always look to see with these defensive ends, arm length, obviously sacks, and force fumbles … I think Whitney Mercilus has a chance to become an impact player at the next level. “

McShay on DeCastro: “He has a chance to be one of the elite guards, and right away. He's as ready as I think I've ever evaluated a player in terms of being ready to come in and play at a high level.

I wrote ‘balance’ down about 90 times when I was watching his tape. Everything's in balance and under control. He’s instinctive. He’s absolutely just nasty. Tough, physical, just plays with the temperament you're looking for. Competes, highly respected by his teammates, and just everything.

Again, he's the elite of the elite when it comes to guard. But I don't think the athleticism is there, I don’t think the length is there, and the arm length you look for in a tackle is there. I think you're making a mistake if you try to make him something he's not, rather than let him do what he does best and become a Pro Bowl level offensive guard.”

I wouldn’t be shocked if one of these two players is available at No. 18, so the Chargers could be in good shape either way.

» AFC Assessments: East | West | North | South » NFC: East | West | North | South

Denver Broncos

Key additions: QB Peyton Manning, CB Tracy Porter, TE Joel Dreessen, TE Jacob Tamme, S Mike Adams, QB Caleb Hanie, WR Andre Caldwell.

Key losses: DT Brodrick Bunkley, WR, Eddie Royal, TE Daniel Fells, QB Tim Tebow, QB Brady Quinn, TE Dante Rosario.

Did they get better? The Broncos added Manning and that move changes the course of the entire division. Denver is instantly the favorite to win the AFC West again because of this addition. Yes, there are risks as the 36-year-old Manning missed the entire 2011 season with a neck injury that required several surgeries. Denver is convinced Manning is fully recovered and has been cleared to play.

If the 2012 Manning is anything like the Manning we last saw, Denver will be in good shape and the offense will be dangerous. The key is on defense. It has improved greatly and the Porter and Adams additions should help, even while losing Bunkley will hurt. Overall, this team made huge strides in the offseason.

What’s next: Denver’s biggest need areas are at defensive tackle (the Broncos may need two), running back, safety, receiver and linebacker. However, much of that need is for depth purposes.

Denver’s only true glaring hole is at defensive tackle. Expect the Broncos to use their No. 25 pick on the position. I wouldn’t be surprised if the team’s second-round pick is used on a running back unless the Broncos like one of the remaining veterans on the market.

Kansas City Chiefs

Key additions: CB Stanford Routt, RT Eric Winston, RB Peyton Hillis, TE Kevin Boss, QB Brady Quinn.

Key losses: CB Brandon Carr, QB Kyle Orton, FB Le'Ron McClain, LB Demorrio Williams.

Did they get better? Had it not been for the Manning blockbuster, everybody would be taking about what the Chiefs did. I think the Chiefs’ work in free agency was among the best five in the NFL.

Instead of giving quarterback Matt Cassel serious competition, the Chiefs further committed to him by giving him some strong pieces on offense. Hillis will team with Jamaal Charles to make a dangerous running tandem. Winston is one of the league’s better right tackles and Boss and Tony Moeaki will give opposing defenses fits in double tight end sets. This will be a varied offense that will have many weapons. The Chiefs are solid on defense and Routt is a veteran who is comparable to Carr, but more experienced and is less expensive.

What’s next: The Chiefs could use a nose tackle, help at inside linebacker, secondary depth and offensive line depth. They will get a good player with the 11th pick and I think they will try to solidify the middle of the defensive line with someone like Memphis’ Dontari Poe. If the Chiefs can add an impact defender with that pick, it will complete an outstanding offseason.

Oakland Raiders

Key additions: G Mike Brisiel, CB Ron Bartell, CB Shawntae Spencer, CB Pat Lee.

Key losses: LB Kamerion Wimbley, RB Michael Bush, QB Jason Campbell, CB Stanford Routt, TE Kevin Boss, DT John Henderson, RB Rock Cartwright, WR Chaz Schilens, DE Trevor Scott, CB Chris Johnson.

Did they get better? It’s difficult to argue this team improved. Just look at all the losses. It’s a pure fact of numbers, Oakland lost much more than it brought in. This team has more questions than it did at the end of last season and it has more holes. With limited cap space and the fact Oakland doesn’t pick in the draft until No. 95, the Raiders will have a difficult time adding any more impact players. Depth can be an issue.

I understand why this has happened. The new Oakland regime had to get things in order, and sometimes, before a team can make major steps forward as an organization, it may have to take a step back. There is still a lot of talent in Oakland, but it is clear the other three teams made more impactful additions.

What’s next: Oakland will be challenged to find impact players, but it will need to add depth at several places after finding a starting outside linebacker. Oakland needs depth at linebacker, the secondary, offensive line, running back and at quarterback. I think we will see Oakland be patient and add at spots all the way up into the season.

San Diego Chargers

Key additions: WR Robert Meachem, LB Jarret Johnson, WR Eddie Royal, FB Le’Ron McClain, QB Charlie Whitehurst, S Atari Bigby, TE Dante Rosario, LB Demorrio Williams

Key losses: WR Vincent Jackson, RB Mike Tolbert, G Kris Dielman, S Steve Gregory, QB Billy Volek.

Did they get better? I’ve talked to a lot of scouts who believe the Chargers improved. The truth is they lost two good players in Jackson and Tolbert and so did not improve as much as Denver and Kansas City did. But the Chargers did get creative and added a lot of pieces for the price it would have cost to keep Jackson. They also retained key offensive linemen Nick Hardwick and Jared Gaither. Meachem and Royal give quarterback Philip Rivers some interesting weapons.

Johnson will help the defense and he will make it tougher. The Chargers may have gotten a little deeper while losing some star power.

What’s next: The Chargers still haven’t addressed their greatest need outside of keeping its offensive line intact. San Diego will no doubt use its No. 18 pick on the best available pass-rusher to help Johnson is not a great pass-rusher.

Other needs include a big backup running back, offensive line depth and some more depth in all layers of the defense.

Three weeks ago, San Diego general manager A.J. Smith said that the team’s offensive line situation was keeping him up at night.

While there still could be some change on the unit charged with protecting star quarterback Philip Rivers, there will be some continuity. ESPN.com's John Clayton reports that left tackle Jared Gaither has agreed to a four-year extension with the Chargers.

He joins center Nick Hardwick who re-signed with the Chargers on Tuesday. Unless the Chargers make a change and draft someone like David DeCastro or delve into the deep guard free-agent class, key backup Tyronne Green is expected to replace the recently retired Kris Dielman.

Gaither was an injury replacement for Marcus McNeill last season. The Gaither re-signing means the Chargers will not look to bring back McNeill at a lesser price unless he is desperate and comes back as a backup when he is medically cleared to return from a neck injury.

Gaither is an interesting player. The massive 6-foot-9, 340-pound Gaither was a standout in Baltimore, but he missed all of the 2010 season with a back injury. Oakland tried to sign him last summer but it had injury concerns. He later signed with the Chiefs.

He was slow to get into the groove with the Chiefs and he was cut after making a critical mistake in a game. The Chargers, who were ravaged by injuries on the offensive line, claimed Gaither and he instantly became the player he was in Baltimore prior to his injury. San Diego is counting on him being that player moving forward.

It’s been a busy early free-agency period for San Diego. The team lost star receiver Vincent Jackson to Tampa Bay and replaced him with New Orleans’ Robert Meachem. The team will also try to re-sign running back Mike Tolbert and defensive tackle Antonio Garay. Tolbert is visiting the rival Chiefs on Wednesday. San Diego will also want to add some more help in free agency, perhaps adding another receiver, and it wants a pass-rusher. But the offensive line issues are now solved and that was Smith’s biggest worry.

This is not a good day in San Diego.

Vincent Jackson has walked away.

While there were indications in recent days that the Chargers were not prepared to match an enormous deal for Jackson, there has long been the thought that the Chargers -- who are heavily pursuing New Orleans’ Robert Meachem on Tuesday night -- couldn’t afford to let Jackson leave.

This is a critical offseason in San Diego and it has not started well. In addition to Jackson leaving, the Chargers saw longtime standout guard Kris Dielman retire because of a severe concussion he suffered last season, the team cut left tackle Marcus McNeill because of a neck injury and valuable running back Mike Tolbert is poised to visit AFC West rival Kansas City on Wednesday. The Chargers also have priority free agents in left tackle Jared Gaither and defensive tackle Antonio Garay. San Diego’s lone bright spot, thus far, was the re-signing of standout center Nick Hardwick on Tuesday to a three-year deal.

The Chargers must get better. They must do some things in free agency.

Owner Dean Spanos upset the fan base when he brought back coach Norv Turner and GM A.J. Smith in January.

Fans expected Spanos to show a commitment to them by getting better in free agency, and the Chargers still could get better.

But seeing Jackson leave is not going to convince the San Diego fan base the Chargers are truly committed to getting back to the playoffs for the first time since the 2009 season.

Jackson is a premier receiver and he was a great fit for quarterback Philip Rivers, who has to be wondering what is going on with his offensive line and receiving crew.

The Chargers gambled by not giving Jackson the franchise tag for a second year because it jumped to more than $13 million this season. He is averaging just more than $11 million per season with Tampa Bay. The Chargers took a shot at Jackson, but they likely never got close to what Tampa Bay offered.

Now, the Chargers have to go find a top receiver. The only receivers on the roster are No. 2 starter Malcom Floyd (who is injury prone) and second-year player Vincent Brown.

The free-agent class is drying up. The best options may be Brandon Lloyd, Meachem, Mario Manningham and Laurent Robinson. Meachem may soon sign with the Bills even though the Chargers are pushing for him. Robinson flourished in Dallas last season after not making the Chargers’ roster last September. I’m not sure any of those players will make anyone forget about Jackson. The Chargers, who badly need a top pass-rusher, may have to consider taking someone such as Notre Dame’s Michael Floyd with the No. 18 overall pick in the draft.

Here is one way I think the Chargers can regain the trust of fans, but it’s a long shot. They could step in front of Buffalo and sign monster pass-rusher Mario Williams and then sign Pittsburgh receiver Mike Wallace to an offer sheet the Steelers couldn’t match. The restricted free agent would cost the Chargers their first-round pick if he signed. But adding Williams (the best free agent on the market) and having Wallace replace Jackson would show San Diego’s fans the team is serious about getting better.

Again, don’t expect it to happen, but the Chargers must improve and getting creative may be necessary.

The Kansas City Chiefs might be ready to spend some big money in free agency. ESPN’s Adam Schefter is reporting the Chiefs are one of three teams that have a visit set up with standout right tackle Eric Winston who was a surprise salary-cap dump in Houston

Schefter reports Miami and St. Louis are also looking to visit with Winston. He would be a terrific fit in Kansas City. He’d be a major upgrade over Barry Richardson, who was the weak link of Kansas City’s offensive line. Winston would solidify a unit that has been in flux the past few years. The University of Miami product started every game for the past five years in Houston.

Signing Winston would also likely allow the Chiefs to concentrate on signing either a defensive tackle or linebacker in the first round of the draft.

The Chiefs -- who have franchise receiver Dwayne Bowe and who have added cornerback Stanford Routt -- have a lot of salary cap room and should be able to sign Winston if they chose to. The Chiefs are entertaining Seattle tight end John Carlson on Tuesday.

In other AFC West news:

• Oakland free agent Michael Bush bashed folks for reporting that he is visiting the Cardinals. Bush earlier tweeted that he was in Arizona, but said nothing about visiting the Cardinals.
• Schefter is reporting that Denver free agent Eddie Royal does not yet have a deal done with the Redskins. It has been reported elsewhere that the deal is done. Yet, Schefter said both sides are working to finalize a deal. It makes sense. Royal performed well for Washington coach Mike Shanahan as a rookie in Denver in 2008.
• The Raiders have officially announced they have cut tight end Kevin Boss. His release was first reported Monday. His agent tweeted earlier Tuesday he expected his client to be cut Wednesday.
• Schefter reported that the Broncos were one of a few teams to opt to take the extra $1.6 million in salary cap room next year instead of this year. Most teams were given the extra cap room because cap money was taken away from the Redskins and the Cowboys because of cap infractions. The Raiders were one of two teams not to be rewarded extra cap room because of a lesser infraction. The Raiders didn’t face any more penalties.
• Yet another veteran guard is available. Carolina cut Travelle Wharton. If the Chargers want a veteran to replace the recently retired Kris Dielman, they’ll have their choice. However, the team will likely put Tyronne Green at the spot.
• Former Oakland starter Jason Campbell has agreed to a one-year deal with Chicago, according to Schefter. I will have more thoughts on this deal later Wednesday.

As expected, the Chargers are in the process of cutting left tackle Marcus McNeill.

UT-San Diego is reporting that McNeill’s agent has said McNeill will be cut Tuesday. The Chargers will have about $6 million in salary-cap room with the release.

McNeill is being cut because he has still not been medically cleared to resume playing. Because the Chargers owed him a bonus in the coming days, San Diego had no choice. McNeill spent last season on injured reserve with a neck issue. There is a chance McNeill could come back to San Diego with a lesser deal.

McNeill is the second starting offensive lineman in San Diego to leave this team in the past couple of weeks. Guard Kris Dielman retired because of health issues.

Center Nick Hardwick is a free agent, as is Jared Gaither, who replaced McNeill. The Chargers badly want to re-sign both players. If not, there will be dramatic change on the team’s offensive line. Nearly three weeks ago, at the NFL combine, San Diego general manager A.J. Smith said it was the team’s biggest current issue and it remains the team’s biggest issue as we are closing in on the start of free agency.

In other AFC West news:

San Francisco signed former Denver cornerback Perrish Cox. He was recently found not guilty in a sexual assault case in Denver that could have resulted in him being in prison for the rest of his life. He was with the Broncos when he was arrested, but the Broncos later cut him.

My thoughts on the decision of Denver’s D.J. Williams and Ryan McBean to sue the NFL over their recent six-game suspension for using a banned substance: Why not? The players have nothing to lose, and the Ryan Braun situation in MLB shows it’s a worthwhile try for the players.

Former Denver receiver Brandon Stokley explains in a radio interview his involvement in Peyton Manning's trip to Denver last weekend.

Don’t be surprised if the Denver Broncos make a push for safety Oshiomogho Atogwe, who was released by the Washington Redskins on Monday.

The Broncos were in the mix for him last year and they want to add a veteran safety in free agency. He is represented by the former agency firm of new Denver salary-cap man Mike Sullivan, so Denver could have an advantage.

In other AFC West news:

— The Chiefs announced they have re-signed defensive lineman Amon Gordon. Terms were not disclosed. Gordon is a rotational player. A career journeyman, Gordon found a role in Romeo Crennel’s defense in 2011, netting 20 tackles and two sacks.

— Brandon Stokley — a former teammate of Peyton Manning — has worked out with Manning and believes he is, indeed, the same old Manning. Manning worked out with Stokley on Saturday after his visit with the Broncos. Manning missed all of last season following multiple neck surgeries.

— UT-San Diego believes the Chargers may be priced out of the Vincent Jackson talks when free agency starts Tuesday at 4 p.m. ET.

— In an Insider piece, Gary Horton thinks the Chargers and the Raiders could take a big hit in free agency.

— The Cowboys’ pursuit of Chiefs’ cornerback Brandon Carr and the Redskins’ pursuit of Jackson perhaps will be affected by the sudden loss of significant salary-cap room. The Raiders are one of two teams who will not benefit from Dallas and Washington’s losses because of minor infractions.

— The Vikings cut guard Steve Hutchinson during the weekend. While the Chargers seem prepared to go with Tyronne Green as Kris Dielman’s replacement, Hutchinson provides another option.

UPDATE: The Raiders announced they extended one-year contract tenders to restricted free agent Desmond Bryant and exclusive rights free agents, Mason Brodine, Bryan McCann and Marcel Reece.

Offseason movement starts Tuesday, when the free-agent signing period begins. Let’s take a look at the top needs of each team in the AFC West in free agency and in the draft:

Denver Broncos

1. Defensive line: The Broncos could use a stout defensive tackle even if Brodrick Bunkley returns. They need a tone setter. Denver hasn’t taken a defensive tackle in the first round since 1997 when it selected Trevor Pryce. Perhaps this is the time that streak ends.

Possible fits: The Dolphins' Paul Soliai, Memphis’ Dontari Poe, Mississippi State's Fletcher Cox, Michigan State's Jerel Worthy.

2. Secondary: Denver is too old at cornerback and too young at safety, especially with Brian Dawkins likely not returning. I think the Broncos will look to add to their secondary.

Possible fits: The Redskins' LaRon Landry, Boise State’s George Iloka, Alabama's Dre Kirkpatrick.

3. Running back: The Broncos want to add a running back to pair with Willis McGahee and will address this need either in free agency or early in the draft.

Possible fits: The Raiders' Michael Bush, the Chargers' Mike Tolbert, University of Miami's Lamar Miller, Virginia Tech's David Wilson, Boise State's Doug Martin.

Scouts Inc. take: "I also think that they need a lot of secondary help overall. I also think they really need a QB, but that is probably a discussion for a different day."
-- Matt Williamson of Scouts Inc.

Kansas City Chiefs

1. Offensive line: The Chiefs need a tackle. If they go for a left tackle, they can move Branden Albert to right tackle or they can get one. They might also be interested in a guard.

Possible fits: The Saints’ Carl Nicks, the Dolphins' Vernon Carey, the Eagles' King Dunlap, Stanford's Jonathan Martin, Iowa's Riley Reiff.

2. Nose tackle: The Chiefs have the makings of a strong defense, but they are missing a nasty nose tackle. They need to find one this offseason.

Possible fits: The Dolphins' Kendall Langford, the Ravens' Cory Redding, Soliai, Cox or Poe

3. Inside linebacker: The Chiefs could use one more standout linebacker to flourish in Romeo Crennel’s 3-4 defense.

Possible fits: Boston College's Luke Kuechly, Alabama's Dont'a Hightower

Scouts Inc. take: "Right tackle is far and away their biggest need. I would say nose tackle is second."
-- Matt Williamson

Oakland Raiders

1. Cornerback: The Raiders currently don’t have any starting-quality cornerbacks on the roster.

Possible fits: The Saints' Tracy Porter, the 49ers' Carlos Rogers, the Cardinals' Richard Marshall, the Jaguars' William Middleton, Vanderbilt's Casey Hayward.

2. Linebacker: I get the sense that the new Oakland regime would like to find at least one new starter. I think they can get a cornerstone linebacker who can set the tone for the defense.

Possible fits: The Vikings' Erin Henderson, the Seahawks' Leroy Hill, the Bengals' Manny Lawson, West Virginia's Bruce Irvin.

3. Offensive line: The Raiders' offensive line is a work in progress and they may be looking for at least one new
starter.

Possible fits: Texans' center Chris Myers, Texans' guard Mike Brisiel, Miami of Ohio's Brandon Brooks.

Scouts Inc. take: "Cornerback is far and away their biggest need. I would put right tackle and interior offensive line second."
-- Matt Williamson.

San Diego Chargers

1. Linebacker: The Chargers desperately need a game-changing linebacker. It will be a top priority in the first round of the draft and in free agency.

Possible fits: The Texans' Mario Williams, Alabama’s Courtney Upshaw, USC's Nick Perry, Illinois' Whitney Mercilus.

2. Defensive line: The Chargers like youngsters Corey Liuget, Vaughn Martin and Cam Thomas, but could use a stud veteran in the middle.

Possible fits: The Seahawks' Red Bryant, Redding, Soliai, Washington’s Alameda Ta'amu.

3. Offensive line: The Chargers may have to make wholesale changes on the line because of Kris Dielman's retirement, and because center Nick Hardwick and left tackle Jared Gaither will be free agents.

Possible fits: Nicks, Carey, Stanford’s Martin, Stanford's David DeCastro, Wisconsin's Peter Konz.

Scouts Inc. take: "To me, the Chargers need a lot. Offensive line is a massive need. Some receivers would be nice if Vincent Jackson leaves. On defense, I think they could use a little something at every level, but their biggest two spots would be at outside linebacker and strong safety."
-- Matt Williamson.

In Insider pieces, we are offering a double dose of mock drafts. Both Mel Kiper and Todd McShay offer new mock first-round drafts. Let’s check out their choices for the AFC West teams:

11. Kansas City:

Kiper: Luke Kuechly, MLB, Boston College

McShay: Trent Richardson, RB, Alabama

My take: This is interesting. Kiper has Richardson being off the board when the Chiefs pick and McShay having them taking advantage of him falling down the board. Richardson would be a luxury pick for the Chiefs, but he would give them a nasty offense and a great backfield partner for Jamaal Charles. Kuechly is a safe pick, who should be there for the Chiefs at No. 11. I think he could be the pick.

18. San Diego

Kiper: Whitney Mercilus, DE, Illinois

McShay: Cordy Glenn, OL, Georgia

My take: I like the Mercilus pick. The Chargers need a pass-rusher badly. He led the NCAA in sacks last season. However, the presence of Stanford guard David DeCastro may be tempting because of the retirement of Kris Dielman. I know the Chargers are planning on Tyronne Green taking over for Dielman, but DeCastro is a special talent. I think we’ll learn more about the Chargers’ direction with this pick after the first wave of free agency.

25. Denver

Kiper: Fletcher Cox, DT, Mississippi St.

McShay: Jerel Worthy, DT, Michigan State

My take: I think both Kiper and McShay are on the right track here. I think defensive tackle will be the position Denver looks at first. If Cox is on the board, I think he will be the first choice unless Memphis’ Dontari Poe unexpectedly falls.

Oakland traded its first-round pick (No. 17) to Cincinnati as part of the trade for quarterback Carson Palmer.

» AFC Free-Agency Primer: East | West | North | South » NFC: East | West | North | South

Free agency begins Tuesday at 4 p.m. ET

Denver Broncos

Key free agents: K Matt Prater (franchised), DT Brodrick Bunkley, S Brian Dawkins, TE Daniel Fells, FB Spencer Larsen, WR Eddie Royal, QB Brady Quinn, DT Marcus Thomas, LB Wesley Woodyard, P Britton Colquitt (restricted).

Where they stand: The Broncos will have plenty of salary-cap room. For a team that went from 4-12 with the No. 2 overall pick in the draft to winning the AFC West and a playoff game in John Fox’s first season as coach, the Broncos are in position to improve through free agency. With Prater franchised, the team’s only priority unrestricted free agent is Bunkley.

What to expect: Don’t expect a huge spending spree. The Broncos are cash conscious and I think the franchise is still recovering from some undisciplined spending during the Mike Shanahan era that ended in 2008. We will see the Broncos try to add several pieces at lower prices. Denver could address needs at safety, running back, receiver, tight end, linebacker and quarterback. Keep an eye on players such as Washington safety LaRon Landry, Seattle tight end John Carlson, quarterbacks Chad Henne (Miami), Dennis Dixon (Pittsburgh) or Josh Johnson (Tampa), running backs Michael Bush (Oakland) and Mike Tolbert (San Diego), and defensive lineman Jonathan Fanene Cincinnati.

Kansas City Chiefs

Key free agents: WR Dwayne Bowe (franchised), CB Brandon Carr, QB Kyle Orton, RB Jackie Battle, LB Jovan Belcher, S Jon McGraw, C Casey Wiegmann, RB Thomas Jones, DE Wallace Gilberry, DT Kelly Gregg

Where they stand: The Chiefs are in great shape on cap space even after signing cornerback Stanford Routt and franchising Bowe. They have already done a nice job in free agency with these two moves and have a good, young roster. Kansas City can become a serious playoff contender with the right moves. It is likely Carr will leave in free agency, but the Chiefs should be able to re-sign most of their other free agents if they wish.

What to expect: I’m not sure we will see the Chiefs break the bank for any of the super-hot free agents, but I expect them to do some significant shopping. I think we could see Kansas City look for help at nose tackle, linebacker, safety, tackle, running back and quarterback. Of course, the intrigue could start if the team gets in on the Peyton Manning sweepstakes. But they could also look at several other quarterbacks, including Orton, Henne, Jason Campbell (Oakland) or even Quinn. They could also be in the mix for Miami nose tackle Paul Soliai, Saints guard Carl Nicks and running backs BenJarvus Green-Ellis (New England), Bush and Tolbert.

Oakland Raiders

Key free agents: S Tyvon Branch (franchised), RB Michael Bush, QB Jason Campbell, LB Quentin Groves, C Samson Satele, WR Chaz Schilens, DE Trevor Scott, FB Marcel Reece (restricted).

Where they stand: The Raiders are one of the few teams that must get under the salary cap. Oakland coach Dennis Allen recently acknowledged the team has work to do. The Raiders have some contracts that can be easily restructured, but they also may have to cut some players, particularly on defense. Linebacker Kamerion Wimbley and defensive tackle John Henderson are among the top candidates.

What to expect: The Raiders likely face some limitations once they get under the cap, but they can add two or three starting-quality players under the right circumstances. Their primary needs are on defense, starting at cornerback and linebacker. The offensive line could be upgraded as well. I think they can be in on the second wave of cornerbacks. A player to watch is New Orleans cornerback Tracy Porter, who previously played for Allen. There are some solid second-tier cornerbacks Oakland could be interested in other than Porter. There will be some good players available on both sides of the ball after the initial wave of free agency for short-term deals. Expect the Raiders to do some bargain picking during that time. I think Oakland will be interested in signing several of its free agents, but I expect Bush and Campbell will leave.

San Diego Chargers

Key free agents: WR Vincent Jackson, C Nick Hardwick, RB Tolbert, DT Antonio Garay, OT Jared Gaither, FB Jacob Hester.

Where they stand: The Chargers will be in decent shape and they are getting even better after cutting Luis Castillo, the retirement of guard Kris Dielman and the expected release of tackle Marcus McNeill. But San Diego still has a lot of work to do. They have the most priority free agents of any team in the division. Signing Jackson, Hardwick, Gaither, Tolbert and Garay will be a challenge.

What to expect: The Chargers will likely stick to their usual plan and concentrate first on their own free agents. But they also have other needs and they will likely spend more in free agency than they have done before under general manager A.J. Smith. I get the sense from some agents that the Chargers may spend wildy in an attempt to win back the fan base’s trust after the unpopular contract extensions for Smith and coach Norv Turner. The pair were brought back even after missing the playoffs for a second consecutive season. I also get the sense from inside the organization, however, that the Chargers will not act out of desperation. Look for the team to consider pass-rushers, nose tackles, safeties and offensive linemen if Hardwick and Gaither aren’t brought back. A receiver will also become a major need if Jackson goes. The Colts' Reggie Wayne could be an option in that case. A running back such as Cadillac Williams (St. Louis) reportedly will be in the mix if Tolbert walks. Soliai could interest the team as well. Chicago special teams ace Corey Graham may also be a target. If the Chargers want to make a huge splash, they could try to get in on Houston pass-rusher Mario Williams, who is widely considered the best player on the market.

In an Insider piece, Gary Horton of Scouts Inc. looks at the five best destinations for San Diego free agent receiver Vincent Jackson. In the end, though, Horton reasons that the best spot for Jackson is to stay in San Diego. That’s the scenario both Jackson and the Chargers want.

However, because there is a remote chance the Chargers will place the franchise tag on Jackson by Monday’s deadline, the more likely scenario is that the Chargers and Jackson will discuss a deal once he hits the open market. If the Chargers are in the same range of Jackson’s best offer, he will likely be inclined to stay in San Diego.

In other AFC West news:

ESPN’s Adam Schefter reported the Titans are not expected to place the franchise tag on cornerback Cortland Finnegan. That is relevant to the AFC West for a couple of reasons. Finnegan will provide competition for Kansas City cornerback Brandon Carr on the open market. Finnegan will also likely attract the interest of the Broncos and the Raiders. Both teams are looking for cornerbacks, although Finnegan will be pricey on the open market.

Former Denver cornerback Perrish Cox was acquitted in a sexual assault trial Friday. I have been asked often Friday if I think the Broncos could re-sign him. I don’t see it. I think the Broncos have moved on. Perhaps Cox will get a chance elsewhere in the NFL, but I don’t expect it to be in Denver.

In a radio interview, San Diego quarterback Philip Rivers talks about the retirement of guard Kris Dielman, and how strange it was to recently work out with a division rival.

An Insider piece connects LSU defensive tackle Michael Brockers to the Broncos. I think the Broncos would do back flips if Brockers was available at No. 25.

Former NFL coach Brian Billick looks at why he thinks the Chiefs are a good fit for Peyton Manning.

The Indianapolis Star is reporting that Peyton Manning has been throwing better. Manning could be cut by the Colts within the next six days since he's owed a $28 million roster bonus on March 8. If he becomes available, the Chiefs will monitor his progress.

The Football Outsiders believe San Diego free-agent receiver Vincent Jackson would be a perfect fit in Chicago to team up with former AFC West rival Jay Cutler.

Raiders running back Michael Bush is likely on the way out in free agency. One possible destination to keep an keep an eye on: Cincinnati. The Bengals are expected to pursue a running back.

The Steelers cut Chris Kemoeatu. He is a massive guard who could attract interest from the Chargers if they decide to go the free-agent route to replace the recently retired Kris Dielman. Kemoeatu has been injury-plagued and his level of play has gone down some. The Chargers may opt to give backup Tyronne Green a chance to start.

San Diego guard Kris Dielman conducted an emotional news conference Thursday to announce his retirement.

The news conference was attended by several teammates, coaches and team employees. An under-the-radar mauler, Dielman was reportedly full of emotion as he was forced to prematurely end his career at the age of 31. Teammates were reportedly choked up, too.

"I gave everything I had,” Dielman said. “It ended a little early but it is the right thing to do. I had a blast.”

Dielman is retiring because physicians warned him of potential long-term effects of a serious concussion he suffered at the New York Jets in October that ended his season. Dielman suffered a seizure on the plane flight home that night. Here are my thoughts on the end of a great career.

In other AFC West news:

NFL.com is reporting the Raiders will franchise safety Tyvon Branch. I will be back soon with some thoughts.

The sexual assault case of former Denver cornerback Perrish Cox has gone to the jury.

An Insider piece connects Cal linebacker Mychal Kendricks to the Chargers in the draft.

In their attempt to get under the salary cap, the Oakland Raiders have thrown down the gauntlet with one of their high-priced players.

NFL.com is reporting that a team source said linebacker Kamerion Wimbley will be cut if he doesn’t take a pay cut. That ultimatum to Wimbley isn't unexpected, but I’m not sure the tactic will work. Wimbley’s agent, Joe Linta, is not the type to blink. If he thinks the proposed pay cut is too steep and he thinks he can get his client a better contract on the open market, he will stand his ground and call the Raiders’ bluff.

Pass-rushers are always in demand on the open market. There would be interest in Wimbley in free agency. I could see the San Diego Chargers taking a look at Wimbley. Four of his seven sacks last season were against the Chargers in one game. Wimbley has 42.5 career sacks in six NFL seasons and 16 in the two seasons he has spent with the Raiders since being acquired in a trade with the Browns. Wimbley created solid pressure in 2011 despite average sack numbers.

Wimbley, who signed a lucrative extension in August, is due to make $11 million this season with $6.5 million in guarantees. The Raiders are most interested in lowering Wimbley’s cap number to help the team get under the salary cap. The Raiders are more than $20 million over the cap.

They may have to cut a player or two and it seems Wimbley is on that list if he is not open to restructuring. The Raiders cut cornerback Stanford Routt last month. Like Wimbley, Routt was given a hefty new contract last year by former owner Al Davis, who died in October. While the new Oakland regime is trying to get the team’s cap in order, it is also trying to keep quality players on a defense that already needs upgrades.

Losing Wimbley would hurt the Raiders but in seems they are prepared for the possibility.

In other AFC West news:

• In a podcast, Mike & Mike discuss Tim Tebow’s chances of being the Broncos’ quarterback in 2012.
• Oakland kicker Sebastian Janikowski will have to attend anger management issues stemming from a 2010 incident.
• Chargers’ owner Dean Spanos honored guard Kris Dielman, who will formally announce his retirement Thursday.
• "First Take" discusses Tebow’s reported dinner date with Taylor Swift. Yes, "First Take" dishes on all things Tebow.