Yahoo Sports: Heisman Watch Week 5: Quarterbacks get all the credit
College football is four weeks in, which means we have enough data to start thinking about legitimate Heisman contenders. Every week, Dr. Saturday will name its five Heisman contenders in order with our favorite on top. As we saw last year, the list can change pretty quickly depending on the week. We're willing to say we had Matt Barkley high at the beginning of last year, but we'll also note we mentioned Johnny Manziel as a possible contender following last year's game against Louisiana Tech early in the season. And conference play will change everything.This week, it's all about the ...