I wasn't aware Vrabes had made any statement on run defense, do you have a link?
My assessment is based on what I saw reviewing the tapes of the broadcasts, TBC appeared to do just fine against the run. There is no doubt Vrabel back at OLB and Colvin shifted back alongside Sey improves run D, they were the original starters after all, but given the reshuffle and TBC's injury promotion, I don't think things went that badly.
I'd also like a closer look at the 130 yd stat for the last five games, Jax was 70 yds if you excused the fluke TD run. Tennessee had Marquis Hill taking reps. Miami was a disaster, but I don't recall big runs until the very end. Then, Indy put up 125 yds rushing, pretty close to that 130 average to end the season...and TBC didn't start. Makes you wonder if game planning affected the stat lines.
If TBC was that bad against the run, then Vrabel should have been moved down to OLB against San Diego and Alexander brought in to help cover Gates. Calling the switch a demotion for the Indy game just doesn't make sense when the true run threat was the game before...San Diego had 23 more yards rushing than Indy, was TBC the problem?
I also have to ask, all these stories and posts claiming Bruschi was being targeted in the run game, how does that factor in? If TBC sitting and Alexander starting was to improve against the run, how do we think that helps the run game if Bruschi was targeted as much as was being written?
I don't have the skill/knowledge to work through all the variables and come up with an equation that answers all the questions, so I simplify and watch tape. At SD TBC turns LdT back inside on the very first play, and Seymour is out of position and screened out of the play by the LT as LdT rumbles for a first down. Antonio Gates was effectively shut down in the game, it just looks like one of BB's ugly game plans, and that view through my TV has me arguing in favor of TBC. Naturally I'd love to be proven right, seeing him re-signed to a multi-year contract with a hefty bonus, as always the ball's in BB's court.