Question: When was the coach the went 0-8 in the rivalry between the University of Oklahoma Sooners and the Oklahoma State University Cowboys of the Big 12 Conference, fired?
Sentence (from "Bedlam Series"): Both schools were also members of the Big 8 Conference before the formation of the Big 12 Conference in 1996, and both were divisional rivals in the Big 12 South Division prior to 2011.
Relevant evidence: No