 Complete the following phrase:  In 1986, Cobb became an assistant athletic director at USC. Cobb was outspoken about the fact that black athletes at USC were graduating at a lower rate than white students and he did not see anything being done to assist those students. After Cobb was denied a promotion in 1990 or 1991, he sued the university for racial discrimination and breach of contract, saying that the university denied the promotion because his advocacy for its black athletes. USC was represented by Johnnie Cochran, who later represented O. J. Simpson in his 