Mack Brown Won’t Rush UNC’s Potential Defensive Coaching Changes Posted Jan 9, 2023 If UNC football coach Mack Brown intends to make offseason changes to his Tar Heels coaching staff on the defensive side of the ball, he’s in no immediate rush. Brown has yet to meet with defensive coordinator Gene Chizik and dig into a full-scale evaluation of the Tar Heels’ defense from this past season. "Over the next two weeks," Brown said Monday. (Inside Carolina)