We are unveiling one unit per day and will end Thursday with overall coaching staffs.
The rankings take into account what the players have accomplished, how we think the players will do this season and sheer talent. But production does trump potential.
Here are the defensive line rankings. Next up: linebackers.
DEFENSIVE LINE UNIT RANKINGS
1. IOWA BUZZ: All four starters are back for a group that produced 202 tackles and 27 sacks last season. The leader is E Adrian Clayborn, a dynamic force off the edge who had 11.5 sacks and 20 tackles for loss.
11. TCU BUZZ: The Frogs no longer have the star power of E Jerry Hughes in their front four, but Wayne Daniels, Cory Grant and Co. should make sure TCU continues to harass opposing quarterbacks and running backs.
12. RUTGERS BUZZ: Three starters are back. The new starter is E Jonathan Freeny, who had 9.5 sacks last season in a reserve role.