http://www.geocities.com/epark/raiders/football-101-3-4-defense.html Pretty good breakdown of player types and roles in the 4-3 vs. 3-4. It has been proposed that we could go to a 4-3 base and allow platooning of Seau and Bruschi without missing a beat. We'll just use an extra DL where we're strong (no doubt) and play 3 linebackers. Who are the 4 linemen? If we add 285 lb. Jarvis Green, we need another DE. Warren and Seymour aren't suited to be the fast DE, they're DTs in a 4-3. Remember, that LB we eliminated was one of our two pass rushers. At 285, Green is big for a 4-3 base end, huge for a rush end. He essentially replaces Wilfork, with Adalius or Vrable or maybe Chad Brown on the other side. Linebackers? We have strong side, slower than average middle linebackers and weak side? ("The WLB (weak-side LB) often plays in space, has the freedom to flow to the ball, and must have good range. WLBs are often undersized compared to the other LBs.") We don't have this guy. The closest would be Rodney Harrison, a safety who might have lost a step playing out of position. Of course we could just throw Warren Wilfork, Sey and Green out there and just take one of Seau and Bruschi out. That would mean All the front seven except 2 tackles and the strong side linebacker would be slower than average and playing out of position. Thoughts?