Oklahoma coach Lincoln Riley heads into year two with the Sooners looking for a new quarterback. (Michael Yanow via AP)

 

Oklahoma coach Lincoln Riley join AP college football writer Ralph Russo to talk about the Sooners after Baker Mayfield, the art and science of calling plays and coming up under Mike Leach.The Sooners went to the College Football Playoff last season under Riley in his first as coach. The youngest Power Five head coach has to find a new starting quarterback to replace the Heisman Trophy winner this season and retool a defense that needs some new playmakers.