Sooner defense in need of a quick fix - Article Photos 30/30

Oklahoma's Aaron Colvin (14) breaks up a pass for Missouri's Kendial Lawrence (4) during the second half of the college football game between the University of Oklahoma Sooners (OU) and the University of Missouri Tigers (MU) on Saturday, Oct. 23, 2010, in Columbia, Mo. Oklahoma lost the game 36-27. Photo by Chris Landsberger, The Oklahoman