Lucas: Williams Emphasizes Details Posted Mar 17, 2015 When he gathered his team at his home on Sunday night to watch the NCAA Tournament selection show, Roy Williams emphasized three main points for this week’s postseason preparation. They are: Turnovers - Taken as a whole, Carolina’s turnover numbers actually aren’t as bad as you might expect. The Tar Heels have a turnover percentage of 18.2% according to KenPom.com. (GoHeels.com)