Big-time college football programs now have a pool from which to select minority coaches, according to a study published in USA Today.  The study found that about 15 percent of offensive and defensive coordinators in the football bowl division of the National Collegiate Athletic Association are from minority groups. Those coordinator positions are traditionally the path to head coaching positions. In 2002, the last time USA Today did the survey, only 5 percent of coordinators were from minority groups. Despite that significant growth in the pool, only 7.5 percent of head coaches are from minority groups, the newspaper found, up from 3.5 percent in 2002.