Breaking down the Patriots’ defensive line personnel following the Richard Seymour trade:
Ty Warren (7th year; 6-5, 300) – Signed through 2013, he starts at left end in both a 3-4 or 4-3 alignment. Coming off double groin surgery this offseason, he’s looked strong in training camp and preseason.
Vince Wilfork (6th year; 6-2, 325) – Entering the final year of his rookie contract, he is a top-end nose tackle in the 3-4 and has versatility to play different defensive tackle techniques in the 4-3.
Jarvis Green (8th year; 6-3, 285) – He’s been the first man off the bench and Seymour’s top replacement. A 2002 fourth-round draft choice who has spent his entire year with the Patriots, he is considered a solid technique player and also provides a pass-rush presence. Enters the last year of his contract.
Mike Wright (5th year; 6-4, 295) – Re-signed to a four-year extension this offseason after he visited Arizona and Cleveland, Wright has been playing defensive tackle in the 4-3 scheme – in more of a pass-rush role -- and would project to end in the 3-4.
Ron Brace (Rookie; 6-3, 330) – A second-round draft choice out of Boston College, he has played nose tackle in the 3-4, different defensive tackle techniques in the 4-3, and also defensive end in the 4-3. Has appeared to progress quickly. Signed through 2012.
Myron Pryor (Rookie; 6-1, 310) – A sixth-round draft choice out of Kentucky, he has been a surprise performer, lining up at defensive tackle in the 4-3 and providing some explosion in the pass rush. Signed through 2012.
Derrick Burgess (11th year, 6-2, 260) – Acquired in a trade from the Raiders during training camp, he’s a pure 4-3 edge rusher. He enters the last year of his contract.
(This list does not include Tully Banta-Cain, who would project to outside linebacker in a 3-4 defense, but has played in a three-point stance as a defensive end in pass-rushing situations.)