Boston College coach Bill O'Brien spent time with UNC's Bill Belichick in the NFL. Here's what O'Brien said about Belichick's move to college.

Much remains unknown about the Tar Heels’ on-field product, but Chapel Bill’s presence loomed large over the proceedings in Charlotte on Thursday.

A day after going through the media wringer at ACC kickoff, the new North Carolina coach got a taste of what goes into college-football coaching at the annual Pigskin Preview luncheon.