Article Photos: Oklahoma football: Sooner defense finally has its day in 24-17 win at TCU

Coaches signal defenses with cards during the second half of the college football game where the University of Oklahoma Sooners (OU) defeated the Texas Christian University Horned Frogs (TCU) 24-17 at Amon G. Carter Stadium in Fort Worth, Texas, on Saturday, Dec. 1, 2012. Photo by Steve Sisney, The Oklahoman

Coaches signal defenses with cards during the second half of the college football game where the University of Oklahoma Sooners (OU) defeated the Texas Christian University Horned Frogs (TCU) 24-17 at Amon G. Carter Stadium in Fort Worth, Texas, on Saturday, Dec. 1, 2012. Photo by Steve Sisney, The Oklahoman