Posted by ESPN.com's Tim Griffin
After spring practice, there's been a little movement in my pre-spring power rankings. Here's where I think schools are slotted heading into the summer.
1. Texas: Colt McCoy is back bigger and stronger than ever. But the real improvement during the spring for the Longhorns came in the secondary, where they have legitimate two-deep talent. Sergio Kindle was a natural at defensive end and incoming freshman Alex Okafor was better than advertised as a prime pass-rusher. The running game is still a question and depth at defensive tackle could be iffy. But the Longhorns still remember how 2008 played out -- at least if the asterisk-marked Big 12 championship hung in their team room is any indication. February pre-spring ranking: 1.
2. Oklahoma: Gerald McCoy talks about the Oklahoma defense being the best in the nation and they could be with nine returning starters. And the Sooners could improve even more if Auston English and Ryan Reynolds make strong comebacks from injuries. The biggest question remains the four new starters along the offensive line who will be charged with blocking for Heisman Trophy winner Sam Bradford. That turnover remains the primary question that could stymie the Sooners' hopes of an unprecedented fourth straight Big 12 title. February pre-spring ranking: 2.
3. Oklahoma State: Mike Gundy looks to have the conference's most balanced offense -- even as Dez Bryant recovered from knee surgery this spring. The big question remains the defense. New coordinator Bill Young started work on the defensive line as his first order of business before branching out to the rest of the unit. The Cowboys can score with anybody, but Young's work improving the defense will determine whether OSU can contend for its first Big 12 South title and be a legitimate factor in the BCS race. February pre-spring ranking: 3.
4. Nebraska: Quarterback Zac Lee's early grasp of the offense looked impressive this spring, but he'll have to build on that quick study if the Cornhuskers are to contend for Bo Pelini's first North title. There are still some holes at wide receiver and along the right side of the offensive line, but the Cornhuskers are improving their talent level -- particularly on defense. I make them a slight favorite in the North Division, mainly because of a more favorable schedule of cross-division rivals. February pre-spring ranking: 4.
5. Kansas: Anticipation is soaring for the Jayhawks, who finish the spring with legitimate hopes of their first undisputed Big 12 North title. Todd Reesing is the North's best quarterback and the return of Dezmon Briscoe from his suspension would give Reesing his best offensive weapon. The line will have less experience than any team in the conference, but has some heralded talent in place. The biggest defensive question will be replacing three starting linebackers who were the heart of last season's defense. Mark Mangino has hinted at a 4-2-5 defense that may be better suited for combating the Big 12's explosive offenses. Their hopes will depend on navigating the North's toughest stretch of South Division opponents. February pre-spring ranking: 5.
6. Texas Tech: Coach Mike Leach has a new five-year contract but will be facing some heavy lifting. This will be his most significant offensive rebuilding job during his coaching tenure as he replaces the prime weapons of last season's South Division tri-champion. Taylor Potts won't be as productive as Graham Harrell, but he has more experience coming into the position than most of Leach's previous starting quarterbacks. The star power at wide receiver will be lacking without Michael Crabtree, but the spring showed the Red Raiders still have much talent and should be deeper throughout the receiver rotation. McKinner Dixon's spring suspension, coupled with Brandon Williams' defection to the NFL, makes pass rushing iffy. And the Red Raiders are looking for two new safeties from an inexperienced group. It all adds up to a challenging rebuilding job for Leach. February pre-spring ranking: 6.
7. Colorado: The Buffaloes remain the Big 12's mystery team and Tyler Hansen's thumb injury only accentuates that uncertainty. New offensive coordinator Eric Kiesau will be taking over this summer. And while he's been around the program for three years, it's still a concern taking the top job. The offense looked fine in the spring game, particularly a bruising rushing game keyed by Darrell Scott and Rodney Stewart. The defensive line remains the biggest question on the other side of the ball and we won't know how that group will play until the season begins. Dan Hawkins confidently picked the Buffaloes to go 10-2 after last season. They'll be better than last season's 5-7, but I'm not sure they will live up to their coach's optimism. February pre-spring ranking: 8.
8. Missouri: It was tough to get a handle on the Tigers during the spring. Blaine Gabbert had some moments, but his numbers weren't that impressive. But those struggles were understandable considering he was throwing to some inexperienced receivers while Danario Alexander and Jared Perry recovered from injuries. The turnover in both coordinators from last season will be interesting to watch. And with all of the thoughts about the huge personnel losses on offense, the Tigers also will lose a lot on defense. I still think the Tigers will go bowling this year, but will be better suited for a run at the 2010 North title than this season. February pre-spring ranking: 7.
9. Baylor: Optimism is flowing along the Brazos with Bears backers -- with good reason if Robert Griffin can duplicate his freshman success. The biggest offensive question remains his protection with two new offensive tackles. On defense, the Bears have a lot of talent returning and Phil Taylor looks like the real deal at
defensive tackle -- their biggest defensive need. Art Briles is changing the culture at Baylor, but it will be interesting to see if he can really push them into bowl contention -- not an easy task in the Big 12 South. February pre-spring ranking: 9.
10. Texas A&M: Credit Mike Sherman for thinking outside the box. The idea to move Von Miller to the "jack" position on defense was a master stroke -- if Miller can hold up to the pounding he'll face in the trenches. It was hard to get a gauge on A&M's running game with so many injuries in their offensive line. When healthy -- and with the arrival of heralded freshman Christine Michael -- the Aggies should be much better than last season. Same for a secondary that appeared overmatched in the spring, but was crippled by injuries at cornerback. It will be a long road back to Big 12 contention, but look for A&M to be more respectable this season. February pre-spring ranking: 11.
11. Kansas State: I wonder if Bill Snyder has ever had second thoughts since returning to coaching. His rebuilding job with this team pales next to what he originally faced back in 1989, but the Big 12 is a more difficult challenge than that old Big Eight was. Carson Coffman claimed the starting job with a late push in the spring, but will be challenged by Grant Gregory and Daniel Thomas later in the summer. The running game needs somebody to emerge as Keithen Valentine and Jarell Childs alternated spring work. The defense has a long way to go, although Vic Koenning's 4-2-5 appears to better suit the talent on hand. Snyder's acumen should help them in some close games, but it still will be a huge challenge to get them back into bowl contention. February pre-spring ranking: 10.
12. Iowa State: Paul Rhoads is a realist. It's hard not to be after he took a look at his defensive players and realized how far the Cyclones have to come in order to be a force in the North. Look for them to make steps this season thanks to his enthusiasm, but still facing a huge climb in order to be competitive with all of the explosive Big 12 offenses. The Cyclones should be productive on offense with new coordinator Tom Herman. Backup quarterback Jerome Tiller looks like he's ready to push Austen Arnaud after a strong spring game. And Alexander Robinson could emerge as one of the Big 12's most underrated players as a versatile run-catch option. February pre-spring ranking: 12.