Pac-12 post-spring power rankings

1. Stanford: The Cardinal have no obvious holes. Unlike last season, Stanford is set at quarterback, and the defense looks as if it will be even better in 2013. It's always nice to have the nation's most talented offensive line.

2. Oregon: While Stanford and Oregon feel like 1A and 1B, you have to account for the uncertainty of the Ducks' changing coaches, particularly when it's one with as big a presence as Chip Kelly. The returning talent, including Heisman Trophy hopeful Marcus Mariota at quarterback, is strong on both sides of the ball.

3. Arizona State: The Sun Devils and UCLA feel like 3A and 3B as the South Division favorites, but the Sun Devils welcome back 16 starters compared with 13 for the Bruins. The biggest question is at receiver, where incoming players are being expected to immediately compete for starting spots.

4. UCLA: There's a lot to like on both sides of the ball, including quarterback Brett Hundley and outside linebacker Anthony Barr. There are questions at running back and in the secondary. Answer those, and get better play out of the offensive line, and the Bruins could be sniffing the top 15.

5. Washington: The Huskies welcome back 20 starters for the re-opening of a renovated Husky Stadium. It's fortuitous that this looks like coach Steve Sarkisian's best team. The biggest question was whether quarterback Keith Price would bounce back from a poor 2012 season. His strong spring, as well as improved play from the offensive line, hints that this could be a Top-25 team.

6. Oregon State: The Beavers are held back, at least in terms of perception, by two things: (1) Uncertainty at quarterback; (2) A worrisome crossing of the fingers at defensive tackle. Neither Cody Vaz nor Sean Mannion separated himself at quarterback, and the Beavers are counting on junior college transfers to fill their two voids at defensive tackle. Still, there's enough here to merit a preseason Top-25 ranking.

7. USC: This low power ranking has nothing to do with talent or potential. The Trojans have enough talent, if things come together, to play in the Rose Bowl. But coach Lane Kiffin sits on the hottest seat in the conference, the Trojans are adopting a new defense under Clancy Pendergast, and there are questions at quarterback and in the secondary. The Trojans might be the most volatile team in terms of predictions. They could win 10 games. Or six.

8. Arizona: Arizona's two main questions are about absence (replacing quarterback Matt Scott) and presence (essentially the entire two-deep returning from a bad defense). It's difficult to believe the Wildcats' quarterback play will be as good as it was last season, but it's also difficult to believe the defense won't be vastly improved. Off-field issues for running back Ka'Deem Carey seem as though they will be resolved, but there is no escaping receiver Austin Hill's knee injury.

9. Utah: The best news for the Utes this spring was improved play from the offensive line and the seeming maturation of quarterback Travis Wilson. There are, however, plenty of questions on defense at all three levels, and it will be interesting to see how Dennis Erickson operates as a co-offensive coordinator.

10. California: Cal also is a volatile stock. A gander through the depth chart has a lot of "what if." As in: What if the Bears get good quarterback play in 2012? What if running back Brendan Bigelow stays healthy? What if the offensive line improves? What if the defense is as good as the recruiting stars suggest it should be? Answer those "what ifs" positively, and this is a bowl team.

11. Washington State: There is every reason to believe the Cougars will be better in Year 2 under Mike Leach, starting with the seasoning all those young players received the hard way in 2012. But it's difficult to see the Cougs eclipsing too many other teams in the conference pecking order. The No. 11 spot here could come with five wins.

12. Colorado: Colorado will be better in coach Mike MacIntyre's first season than it was in 2012, mostly because it can't get any worse. The Buffs were one of the nation's youngest teams last season, and it showed. They figure to be bigger, stronger and smarter this fall. But probably not so much as to escape the basement here.