Maybe it's also time to stop doubting Art Briles and his Bears. They struggled early in Big 12 play in 2012 but roared to the finish by winning five of their final six games. Tailbacks Glasco Martin and Lache Seastrunk played a huge role in those wins, and the duo finished the season with a combined 1,901 yards and 22 touchdowns. Even scarier is the fact that Martin and Seastrunk averaged 6.1 yards a carry. With such a potent ground game, defenses will have trouble pressuring new quarterback Bryce Petty, who should put up big numbers for Briles just as Robert Griffin III and Nick Florence did.