Inside the Numbers: P.J. Hairston Posted Jan 18, 2013 P.J. Hairston attempts a field goal attempt every two minutes he's in a game. In games that Hairston hits his average of one shot for every two minutes of game action, North Carolina's margin between points scored and points given up is a difference of almost 15 points per game. When he doesn't, that margin drops to 10. (Tar Heel Illustrated)