Sam Howell has spent two years developing into a Heisman Trophy candidate and top NFL prospect at North Carolina.

The new challenge is keeping the Tar Heels' offense rolling despite major personnel losses around him. The first steps have come during spring practices, where Howell has focused on being a leader for players getting their first shot at leading roles.

"The big thing for me coming in was just trying to get timing down with these new receivers and new backs, and just kind of get a feel for the offense," Howell said. "Because I've been with the same players my first two years here, and it's a completely different offense now - a lot of new faces playing."