Roy Williams Pre-Duke Press Conference Notebook Posted Mar 2, 2018 When asked Thursday, Roy Williams said some of North Carolina's defensive struggles have resulted from the lack of a rim protector. "There's no question that's a big problem," he said. "In the past, we could mess it up and John Henson might block a shot or Tyler Zeller might block a shot or James Michael McAdoo may take a charge inside. We haven't had that." (GoHeels.com)