Two full weeks of games aren't enough to make firm conclusions about teams, but the limited sample size highlighted some possible concerns for contenders.

LSU , Penn State and Georgia had a hard time pulling away from inferior competition in Week 2. Clemson trailed Troy 16-3 at halftime before finding its way in the second half to avoid an 0-2 start. After limited cowbell prep, Arizona State 'sears will be ringing for a while as a last-minute defensive breakdown doomed the defending Big 12 champs against Mississippi State in Starkville. Michigan quarterback Bryce Underwood 's plan to shock the world has been put on hold as Brent Venables' Oklahoma defense humbled the nation's No. 1 recruit in Norman.

Illinois overcame early offensive line struggles to pounce on mistak

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