Power Rankings: No. 21 Nebraska

Taylor Martinez is finally 100 percent healthy, and after an offseason spent on footwork and passing mechanics, the junior QB expects much better results in 2012. Martinez's supporting cast is strong, headlined by All-America candidate Rex Burkhead at running back. The Blackshirts defense hopes to replace star power (Lavonte David, Alfonzo Dennard) with greater overall depth, particularly in the secondary. Nebraska fell short of inflated expectations during its first year as a Big Ten member, but Huskers players and coaches should be more comfortable in their second go-round. The Legends Division won't be easy, and Nebraska must get past the Michigan schools to have a chance at its first league title since 1999.

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