Brian was in scouting for NE in '08. In '09 he became an assistant with no positional coaching duties. That means he was a gopher. It wasn't until '11 that he was named TE coach and he did that for 1 season, with both of the TE's at the time being pro-bowl caliber TE's, which would be hard to screw up. So, you can overstate his importance to the Patriots and exaggerate what he learned from them all you want.
Regarding two 1000 yard rushers; how is that all Brian's credit? Greg Davis called all the plays, didn't he? AW and LD ran the ball, didn't they? But, since you want to give the run game coordinator all the credit for the running game, I have a question for you. Do you think kirk should hire a pass game coordinator to help the passing game? I'm sure you understand that it was the passing game that prevented this team from winning 10 games this season.
Note: Hayden Fry almost did it with Harmon and Gill, with one game less, and that was with a pass first offense. The critical thinker would ask why it took kirk ferentz 18 seasons to get the first dual 1000 yard rushers; since this is a run first offense. We finished 6th in the B1G in rushing yards per game (conf only). OSU finished 1st with more than 550 more yards that us. Perspective, Clinton...perspective.