Posted by ESPN.com's Adam Rittenberg
There's minimal shuffling in the ratings after some good performances, some bad ones and some impact injuries. Beanie or no Beanie, Ohio State remains at the top and should stay there for a while, but Illinois and Michigan State missed opportunities to move up.
1. Ohio State: Sure, it was Youngstown State, but the Buckeyes were sharp on both sides of the ball. A star-studded defense didn't let the Penguins cross midfield until the game's final play, Terrelle Pryor turned in a solid debut and starting quarterback Todd Boeckman was steady.
2. Wisconsin: The Badgers are barely hanging onto this spot, mostly because of health concerns on defense. P.J. Hill and the run game looked superb against Akron, but several key defenders are banged up, which could hurt in Week 3 at Fresno State.
3. Penn State: Playmakers abound for the Nittany Lions, as overmatched Coastal Carolina found out Saturday. New starting quarterback Daryll Clark should get plenty of help from wideout Derrick Williams and a run game that produced 334 rushing yards Saturday.
4. Illinois: The Illini deserved to drop after a poor defensive performance against Missouri, but both Michigan and Michigan State lost and no one else beat a decent team. Quarterback Juice Williams did all he could against the Tigers, but a defensive line that was billed as the team's strength fell short.
5. Michigan State: How do the Spartans move up after a loss? They inspired more hope than Michigan and received excellent performances from wide receiver Mark Dell (202 receiving yards) and running back Javon Ringer (200 all-purpose yards) on the road against Cal.
6. Michigan: There's a ton of work to do on offense, and the transition at quarterback will take time to click. But the Wolverines' defense dominated Utah in the second half Saturday and should keep games close until the offense gets on track. Linebacker Obi Ezeh's play was particularly encouraging.
7. Northwestern: The Wildcats were the only Big Ten team to beat a BCS foe, though Syracuse barely qualifies anymore. Still, Northwestern received the boost it sought from a much-maligned defense, which produced a touchdown and a safety in a 30-10 victory. Running back Tyrell Sutton also looked in top form.
8. Iowa: A 4-0 start seems very possible for the Hawkeyes after Pitt's loss, and a mostly unproven group of running backs looked superb against Maine. Iowa still needs more consistency from quarterback Jake Christensen, but linebacker A.J. Edds is developing into a star and will boost a decent defense.
9. Indiana: Quarterback Kellen Lewis can take this team a long way and got off to a strong start after reclaiming his starting job in camp. Defensive end Jammie Kirlew had a nice game, but I'm still not sold on that unit until it faces a sterner test (Ball State on Sept. 20).
10. Purdue: The Boilermakers are hurt a bit by not playing, but more by the season-ending injury to running back Jaycen Taylor. With uncertainty at wide receiver, it would have helped if Curtis Painter could count on two backs instead of only Kory Sheets, who has had fumbling problems. Linebacker depth is a major concern, but an improved secondary could vault the Boilers up the list.
11. Minnesota: Kudos to the Gophers for matching last year's win total in Week 1, but they were seconds away from a home loss to Northern Illinois. The secondary remains susceptible to big plays, which won't cut it this week against Bowling Green and Tyler Sheehan.