Article Photos: Oklahoma football: Bob Stoops rolls the dice with Trevor Knight 24/28

FILE - In this Tuesday, March 12, 2013, file photo, Oklahoma quarterback Blake Bell (10) throws during a spring NCAA college football practice in Norman, Okla.  The competition to replace starting quarterback Landry Jones will go in front of the public eye for likely the only time when Oklahoma plays its spring game Saturday. Blake Bell, Kendal Thompson and Trevor Knight have been competing for the job during the Sooners' closed practices. (AP Photo/Sue Ogrocki, File) ORG XMIT: OKSO101