Roy Williams Demanding Greatness on the Glass Posted Jan 25, 2017 UNC not only leads the nation in rebound margin, but also is on pace to set the single-season school record by more than three boards. Don’t expect glowing praise from Roy Williams on his team’s efforts quite yet, though. The Tar Heels are outrebounding their opponents by a differential of 14.2 boards per game, nearly two more than second-place Central Florida (12.3). (Inside Carolina)