Coach Keith Heckendorf Discusses QBs Posted Aug 18, 2014 North Carolina quarterbacks coach Keith Heckendorf shared his thoughts on the quarterback competition between Marquise Williams and Mitch Trubisky on Monday. How have Marquise and Mitch handled this competition and how have they progressed due to the competition? “The competition has been phenomenal. It may be the best thing that’s happened to our quarterback room." (Inside Carolina)