10 key figures in the Cowboys' final five games

10 of 10

Rolando McClain

Photograph By Otto Greule Jr/Getty Images

McClain is perhaps the biggest surprise of the year on defense because he had not played since late in the 2012 season. He has changed the tone of the Dallas defense with his physical play. He has been slowed by nagging injuries, and there has to be some worry about his stamina after his time off, but he is the best pure playmaker on the defense.