Mack Brown congratulates Roy Williams on retirement from North Carolina Posted Apr 3, 2021 North Carolina is home to two legendary coaches. With Tar Heels basketball coach Roy Williams stepping aside, football coach Mack Brown stands alone. The two fed off each other and had great admiration for the other. Brown couldn't help but feel a little emotional. "He’s been a wonderful friend as we’ve journeyed through this profession together." (247 Sports)