Despite universities making strides to diversify their student bodies, racism has had an effect on universities' athletics. According to Charles T Clotfelter, "No bigger issue has faced the United States during the reign of big-time college sports than the blot of racial segregation and discrimination." As college sports have gained notoriety, the national attention towards this issue has increased. Clotfelter continues his analysis of equality in collegiate sports by stating that the "Brown v Board of Education decision of 1954 set the stage for an epic confrontation between... the South's devotion to college football and its cultural commitment to Jim Crow laws". With a significant portion of the South's football players being African-American, tensions between the players and the southern atmosphere became readily apparent. In terms of the South maintaining a sense of authority over blacks, in the year 20 "92.5 percent of university presidents in the FBS were white, 87.5 percent of the athletic directors were white and 100 percent of the conference commissioners were white". In comparison, "roughly 31 percent of position coaches are black and 12 percent of coordinators were black. Out of the players in the FBS, roughly 54 percent are black". Whereas the NFL has implemented the Rooney Rule in order to create opportunities for minority coaches, college football has no such rule in place. However, over time racial cohesion in sports has improved, as Clotfelter states that there has been a "realisation that future success would require integrated teams".