Article Photos: Oklahoma football: Sooners will stage another quarterback derby — this time for the backup job 1/2

Oklahoma's Trey Franks (2) runs past Iowa State's Jake Knott (20) during a college football game between the University of Oklahoma Sooners (OU) and the Iowa State University Cyclones (ISU) at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., Saturday, Nov. 26, 2011. Photo by Bryan Terry, The Oklahoman