Arizona quarterback David Olson throws against Stanford during the first half of an NCAA college football game in Stanford, Calif., Saturday, Oct. 6, 2012. (AP Photo/George Nikitin)

 

              Arizona quarterback David Olson throws against  Stanford during the first half of an NCAA college football game in Stanford, Calif., Saturday, Oct. 6, 2012. (AP Photo/George Nikitin)
Arizona quarterback David Olson throws against Stanford during the first half of an NCAA college football game in Stanford, Calif., Saturday, Oct. 6, 2012. (AP Photo/George Nikitin)