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2012 record: 7-6
2012 Big 12 record: 4-5
Returning starters: Offense: 6; defense: 9; kicker/punter: 2

Top returners: DE Devonte Fields, CB Jason Verrett, WR Brandon Carter, S Sam Carter, S Elisha Olabode, RB Waymon James, K Jaden Oberkrom, RB B.J. Catalon

Key losses: WR Josh Boyce, LB Kenny Cain, DE Stansly Maponga, C James Fry, OG Blaize Foltz, RB Matthew Tucker, WR Skye Dawson

2012 statistical leaders (*returners)

Passing: Trevone Boykin* (2,054 yards)
Rushing: B.J. Catalon* (584 yards)
Receiving: Josh Boyce (891 yards)
Tackles: Kenny Cain (86)
Sacks: Devonte Fields* (10)
Interceptions: Jason Verrett* (6)

Spring answers

1. Offensive line getting straightened out. James Fry and Blaize Foltz were big losses on the interior of the offensive line, and replacing them was a big concern for the Frogs' quiet spring. The spring ended with senior Eric Tausch atop the depth chart at center and sophomore Jamelle Naff winning the right guard job to replace Foltz. Tausch started at left guard last season and moved over, but sophomore Joey Hunt slid up to replace him. Neither Naff nor Hunt have much experience (Hunt earned his lone career start in a loss to Iowa State), but they'll be leaned on this season.

2. New targets acquired. Josh Boyce and Skye Dawson took their talents to the next level, leaving the Frogs in search of a pair of new starters. LaDarius Brown and Brandon Carter were sure things, but strong springs helped fellow juniors Cam White and David Porter win starting jobs at receiver. There aren't many open gigs for a team returning 15 starters, but that's one that will have a big impact.

3. Mallet dropping the hammer. Junior Marcus Mallet emerged late last season and finished with five tackles for loss and a forced fumble among his 18 stops. Now, he looks like the likely candidate to replace departed Kenny Cain and a possible breakout talent on a loaded TCU defense. The 6-foot-1, 216-pounder finished atop the depth chart after a good spring.

Fall questions

1. Is Casey Pachall back to his old self? It's probably safe to operate under the assumption that Pachall will win his job back in fall camp, but beating out Trevone Boykin isn't the same as leading the Big 12 in passing efficiency, like he was last year before his DUI arrest that ended his season. You don't win a Big 12 title with average quarterback play, which brings me to my next question.

2. Can TCU really handle a Big 12 schedule? TCU was competitive last year, sure, and only had one game that it wasn't competitive in. But TCU's not trying to be competitive. It didn't come to the Big 12 to do that. It came to win, and it's proven exactly nothing in that realm just yet. Managing a difficult week-to-week schedule is one thing. Winning just about every week is another. Ask K-State's 2012 team and Oklahoma State's 2011 squad how easy that is.

3. Is the defense for real? On paper, this unit should be absolutely dominant after finishing No. 1 in the Big 12 in total defense and returning nine starters, including Big 12 Defensive Player of the Year Devonte Fields at defensive end. That sounds like Texas' defense from last year, who fell off the map and allowed more rushing yards than any team in school history. Sometimes, you just never really know. This is a new season and last year means nothing. Prove it again.

Turnover is an annual tradition in college football, but with that, teams' strengths and weaknesses constantly shift, too. Today, we'll continue our look at the biggest strengths and weaknesses for each Big 12 team.

Next up: TCU.

Strongest position: Secondary

Allow me to apologize to the Frogs' running backs, who were narrowly edged out by this solid unit that helped TCU navigate a rocky first season in the Big 12 but emerge with the league's No. 1 defense and seven wins. TCU's secondary was the best in the Big 12 last season and returns all five starters in the 4-2-5 scheme under Gary Patterson. Chad Glasgow returned to coach safeties and had three great ones in Sam Carter, Elisha Olabode and Chris Hackett. TCU gave up just 32 passes longer than 20 yards last season, tied with Kansas State and Texas Tech for the fewest in the Big 12. Those three are a big reason why, and though all three are solid players, it was clear that TCU's best overall player in the secondary was a corner.

Jason Verrett was the Big 12's best shutdown corner a season ago, breaking up 16 passes and intercepting six more, both the most in the Big 12. Kevin White, Deante Gray and Keivon Gamble offer solid depth at the position, too. TCU defended (PBUs or interceptions) 86 passes last season, which was 15 more than any team in the Big 12. The secondary is the biggest strength of what should be the Big 12's best defense yet again in 2013, and if the Frogs win a Big 12 title in just their second year in the league, the secondary will be a huge reason why.

Weakest position: Offensive line

Let me preface this by saying TCU doesn't have a glaring weakness next season if Casey Pachall returns and is anything close to his form from 2011 and early 2012. Still, I'm going with a rebuilt offensive line ahead of an average set of defensive tackles for the Frogs. Guard Blaize Foltz and center James Fry exhausted their eligibility (and opposing defensive lines), but the Frogs will have to find replacements for a line that was just OK last year, and had to deal with losing the team's top three running backs for some period of time after the season. Trevone Boykin's youth and sometimes frustrating indecision was a factor, but the Frogs gave up 29 sacks last season, four more than any team in the Big 12. It also averaged just 3.86 yards per carry, the lowest number in the Big 12. Like I mentioned before, injuries had something to do with it, but the offensive line has a lot to prove in 2013.

More Weak and Strong.

We'll continue looking at the Big 12's best at positions across the Big 12 today with the guys who serve as the last line of defense: the safeties. It's a pretty strong position across the Big 12, just like pass-rushers. In this league, it has to be. Let's get to it:

Here's what you've missed so far:

• Quarterbacks
• Running backs
• Receivers
• Defensive linemen

1. Kenny Vaccaro, Texas: Vaccaro is quick, explosive, versatile and has a great feel for the game. That's a fantastic combination for a safety and he patrols near the line of scrimmage for the Longhorns, but has great cover skills, too. The top three safeties in the league are really tight, but for my money, Vaccaro is the top of the list.

2. Tony Jefferson, Oklahoma: Jefferson was the biggest piece of Oklahoma's defense this past season, and finished second in the league with 119 tackles. The Sooners' new scheme fed ball carriers his way, but Jefferson was there to make plays all year long. He moved to a more traditional safety spot after spending much of his first two years at nickel back. He's good in coverage, though his straight-line speed isn't eye-popping, and part of that is being a very instinctive player, just like Vaccaro.

3. Ty Zimmerman, Kansas State: Zimmerman's got a nose for the ball that's as solid as anybody on the list, and had a great year despite missing the last few games of the regular season with a broken bone in his leg. He picked off passes in four consecutive Big 12 games and finished with 50 tackles.

4. Cody Davis, Texas Tech: Davis has tons of experience and had a great year for a very improved Texas Tech defense. He picked off three passes, broke up seven passes and made 101 tackles as part of a secondary that limited offenses through most of the season.

5. Sam Carter, TCU: Carter made a splash in his first year in the Big 12 for the league's best defense. He broke up 10 passes, picked off four more and made 63 tackles. He also forced a fumble and had three sacks.

6. Ahmad Dixon, Baylor: Dixon's got a ton of talent and probably has the most NFL potential of any Baylor defender. He had a solid year, and could put together a big year in 2013. Baylor's defense still struggled for much of the year, but Dixon helped spur a late-season charge alongside linebackers Bryce Hager and Eddie Lackey. Dixon made 102 tackles, including 5.5 tackles for loss, and intercepted two passes.

7. Javon Harris, Oklahoma: Harris tied for the Big 12 lead with six interceptions, though half of them came in games against FCS Florida A&M and 1-11 Kansas. He excelled this past season in Mike Stoops' defense, morphing the Sooners' biggest weakness -- defending the long ball -- into one of its strengths for most of the season.

8. Durrell Givens, Iowa State: There were more talented guys on Iowa State's defense, but there's something to be said for being a turnover machine in a breakout season like the one Givens had in 2012. He produced nine turnovers (three INTs, six fumble recoveries) and forced four more fumbles while making 80 tackles.

9. Bradley McDougald, Kansas: Kansas' defense was pretty ugly, but McDougald was a bright spot with 93 tackles, three interceptions and four tackles for loss with a pair of forced fumbles.

10. Daytawion Lowe, Oklahoma State: Oklahoma State's secondary was a bit disappointing, but Lowe had a decent season with 75 tackles, three tackles for loss, a pair of interceptions and a fumble returned for a touchdown.

Let's take a look at three keys for TCU in today's Buffalo Wild Wings Bowl.

1. Be patient, young ones. TCU's offense hasn't been real effective after losing Casey Pachall, with a couple exceptions. However, they love to run the ball with B.J. Catalon and Matthew Tucker. Trevone Boykin provides another weapon with his legs at quarterback. The Frogs have had a lot of effectiveness working that scheme and then beating teams over the top. They may have to do that with Michigan State, who should be one of the better rush defenses (rank eighth nationally) TCU sees this year. Finding the right time for that big play and hitting it could be the difference in what should be a low-scoring game.

2. Wrap up, wrap up, wrap up. If you didn't already know, the first five minutes of tonight's game will make it very, very obvious: They simply do not make backs like Le'Veon Bell in the Big 12. The 250-pounder runs hard and leads the nation in yards after contact. He can also hurdle you with little hesitation. You cannot arm tackle this man, no matter how hard you try or how much you believe you can. TCU's got to be disciplined tacklers and swarm to him when he's got the ball, otherwise he's going for 200 and TCU's not winning this game.

3. Keep making big plays defensively. TCU kept itself in the game with a pair of defensive plays in the loss to OU, and the offense is likely going to have a tough night against the Spartans. Michigan State quarterback Andrew Maxwell has multiple interceptions in his last two games after throwing two picks in his previous nine games. TCU, meanwhile, are fourth nationally with 21 interceptions this season. MSU won't chuck it around like Big 12 teams, but the Frogs' Jason Verrett, Sam Carter and Elisha Olabode have combined for 14 picks and could do some more thieving. I can't emphasize it enough: This game very likely will turn on a big play. TCU's defense may be just as likely to make it as the offense.

Camp is open up over in Fort Worth. Before we get too deep in sweltering hot practices, I'll offer up a quick preview of what you need to know heading into the season.

See more fall camp previews.

Next up: TCU.

Media's predicted finish: Fourth (received one first-place vote).

Biggest story line: TCU always wanted to be in the Big 12, and now, the Horned Frogs legitimately won their way into rejoining their former Southwest Conference rivals in Texas. But after a steady diet of schedules with only a few featured opponents, can TCU handle a tougher week-to-week schedule in the Big 12? Depth could be an issue, but so could preparing for a brutal line of great opponents in the Big 12.

Biggest question mark: Linebacker. Depth questions were going to come all season long, but the Horned Frogs are now razor thin in the middle of the defense. Tanner Brock was kicked off the team before spring after being arrested in a campus drug sting, and promising linebacker Deryck Gildon is off the team because of academic issues. Kenny Cain is back in the middle of TCU's 4-2-5 defense, but look for Joel Hasley to grab the other spot. It was a disappointing offseason for the Frogs.

Who needs to step up: The safeties. Sam Carter, Elisha Olabode and Jonathan Anderson will likely start the season as the three safeties, but this unit struggled last season in spots. Safeties coach Chad Glasgow is back in Fort Worth after a disastrous season coordinating the defense for Texas Tech, but we'll see if he's able to step right back into his old gig.

Possible distractions: None were bigger than the recent news that quarterback Casey Pachall failed a Feb. 1 drug test and admitted to police he had used cocaine and ecstasy. Gary Patterson earned some criticism for not coming down harder on Pachall considering the recent drug issues on TCU's team, but he did what was required of him in the school's student handbook. Pachall apologized and pledged he'd do better. We'll find out if that's the case.

Don't forget about: DE Stansly Maponga. Jackson Jeffcoat and Alex Okafor get all the accolades down in Austin, but don't be too surprised if Maponga blows up in his first year in the Big 12 and outshines either one of them or both. He's got plenty of experience and made nine sacks while also forcing five fumbles. That earned him first-team All-Mountain West honors, but he's a preseason All-Big 12 honoree, too. Expect him to validate it.

Breaking out: WR LaDarius Brown. You know about the trio of Josh Boyce, Brandon Carter and Skye Dawson. They're outstanding. Brown might end up being better than all of them. Maybe not this year, but expect the freshman to show flashes. He's 6-foot-4, 220 pounds and coming off a redshirt year. Beware.

Time to continue our series breaking down each team's best and worst positions entering the 2012 season. TCU is up next.

More spring superlatives:

• Baylor
• Iowa State
• Kansas
• Kansas State
• Oklahoma
• Oklahoma State
• Texas

Strongest position: Running back

Simply put, this position is pretty absurd for TCU. The Horned Frogs have by far the deepest set of running backs in the league. Ed Wesley, Waymon James and Matthew Tucker all topped 700 yards rushing but each got at least 120 carries and not more than 123. That's crazy balance.

The Horned Frogs may not have a gamebreaker in the unit, and they put those numbers up in the Mountain West, but it's still impressive. Casey Pachall spearheads a great passing attack, but the Horned Frogs are more than capable of getting physical on the ground. Balance has been a benchmark of Gary Patterson's program, and it'll be especially true this year. Nobody in the Big 12 can boast anything close to three 700-yard rushers coming back, and TCU will use them all liberally.

Weakest position: Safety

TCU's safeties outpace the linebackers here, but after Tanner Brock got mixed up in the campus drug sting, there's a big question mark at both positions. Tank Carder was a stalwart at the position for the past three seasons, including the Rose Bowl win in 2010, but he's gone now. Brock missed 2011 with an injury, but the former All-American was expected back. He almost certainly will not return.

Safeties Tekerrein Cuba and Johnny Fobbs are both gone, and the position was already a trouble spot last year. You saw plenty of it in the loss to Baylor that opened the season. Devin Johnson, a likely starter this season, was also arrested in the drug sting and barring a stunning turn of events, won't be with the team this year. Now, it's up to sophomores Sam Carter, Jonathan Anderson and juniors Elisha Olabode and Trent Thomas to fill the void.

The good news? Coach Chad Glasgow is back to coach them after a year coordinating the defense at Texas Tech. The Horned Frogs were the nation's leader in total defense in 2008, 2009 and 2010 with Glasgow. That'll change in their new home in the Big 12, but hopes are still high.