Question: The 2014 Oklahoma Sooners football team represented the University of Oklahoma in the 2014 NCAA Division I FBS football season, the team was led by two-time Walter Camp Coach of the Year Award winner, Bob Stoops, a former American college football coach, and is the former head football coach at which university?
Sentence (from "2015 Oklahoma Sooners football team"): They were a charter member of the Big 12 Conference.
Relevant evidence: No