Article Photos: Oklahoma football: Why the Sooners' 35-20 victory at Iowa State was a feat of Clay 7/47

Oklahoma's Kenny Stills (4) celebrates after a touchdown 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. Photo by Bryan Terry, The Oklahoman