Article Photos: Big 12 appears tougher than it has ever been — if not more 17/69

Oklahoma State's James Castleman (91) and Oklahoma State's Caleb Lavey (45) bring down Texas' Joe Bergeron (24) during a college football game between Oklahoma State University (OSU) and the University of Texas (UT) at Boone Pickens Stadium in Stillwater, Okla., Saturday, Sept. 29, 2012. Photo by Bryan Terry, The Oklahoman