LeKevin is lining up about a yard off the ball, Vince used to be a cat's whisker from encroachment before they backed him off. One of the things the coaches eventually did to improve the D-line play was move all the DL back further and force the uncovered O-linemen to have to take an extra step to engage - it bought the DL a little extra time to get set for the double-teams. I recall reading/hearing where Vince himself discussed how he was overplaying the position - I wish I had a link to refer you to for those comments - when I watched Tivo you could see Vince straining to reach the RB instead of steering his blockers to close rush lanes. There was a gradual improvement from about week 6 leading up to about week 10 or 12, then it's like the light came on and the exit doors slammed shut.
The first series of the second half allows folks with Tivo or slow motion capability on their VCR to see the development stages of one gap DL converting to the two gap method: in Seymour's normal spot is Santonio Thomas taking part in his third Patriots' Training Camp and fresh off two full years of the Practice Squad. In Vince's shoes is LeKevin Smith, a second year camper who spent most of last season inactive on the roster, and finally in Ty's slot is rookie Kareem Brown, fresh from being a sack monster at Miami.
- You will see Santonio penetrate the backfield, but usually by walking the blocker back or defeating the block, he pretty consistently occupies the same volume of space on the LOS, guarding "his" gaps.
- LeKevin Smith can be seen trying to bull his way towards the ball carrier, and often winding up out of position. For his best play he stood up the C, stayed home in the middle, and only after the RB committed to a rush lane went to meet him. He didn't make the tackle, but he and Santonio together slammed closed the lane and force the RB to make a spin move in the backfield to change direction and avoid their waiting embrace. The RB was held to a one yd gain by Oscar Lua who was in the wrong place at the right time (he allowed the LG to meet him upfield and open the lane the RB was trying to use - when the RB had to spin out and cut back, he was in the cut back lane through a combination of LG blocking and shedding the block, "dumb luck that" - a Raising Arizona reference for movie buffs). If you look at LeKevin on some of the plays that went for 5-7 yds, you see him struggling towards the RB and being steered away by the blocker(s) instead of him steering the blocker(s) to the play.
- Kareem Brown can be seen trying to shoot a gap and being blown out of position - the RT took him 10 yds upfield on one play (there is a similar play on a later series going the other way, the RB gets turned back and Santonio flattens him, you hear Cross and Criqui (sp?) talking about the discipline to play your assignment, instead of being 10 yds upfield Santonio was camped in a cut back lane waiting for the play to come to him).