He's a penetrating type player. A year ago, Warren would have been considered too short for the Packers' style of play. Defensive coordinator Ed Donatell wants defensive linemen who can create havoc with speed and quickness. This guy can jerk up a center, but he's really not tall enough to do that in the former system. This way he can still jerk up the center and run around him.
Athleticism plays a more important part than previously with the inside players.
The Packers need help along the defensive line. Gilbert Brown, who started at defensive tackle last season, is a free agent whom the team has expressed very little interest in re-signing. After losing the free agent battle to sign Sam Adams to the Baltimore Ravens, the Packers plan to pursue Russell Maryland. They hope Warren can make a contribution. This is one area here on the defensive line where these guys play early, so if you're good enough you play.