Article Photos: Oklahoma football: Why the Sooners' 35-20 victory at Iowa State was a feat of Clay 25/47

Oklahoma's Justin Brown (19) celebrates after a touchdown in front of Iowa State's Jeremy Reeves (5) during a college football game between the University of Oklahoma (OU) and Iowa State University (ISU) at Jack Trice Stadium in Ames, Iowa, Saturday, Nov. 3, 2012. Oklahoma won 35-20. Photo by Bryan Terry, The Oklahoman