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 "2012 Kansas State Wildcats football team"): Conference play began with an upset victory over the Oklahoma Sooners, which was the first win for the Wildcats in Norman since October 25, 1997.
Relevant evidence: No