This is a very interesting move and Gibbs is one of the first specialty coaches to get me to start paying more attention to those guys.
It used to be, whatever team Gibbs was coaching the o-line was going to have a great running game. However, it seems like the athletic, knee-shredding approach that he employed isn't what it used to be.
His time in Atlanta can be considered misleading since they had Vick and the rushing numbers they acquired aren't necessarily indicative of a good o-line. He then went to Houston and reunited with Kubiak and there was no real fix there either.
Believe me, I used to think Gibbs was magic but there really hasn't been much evidence of it in a while. Dude's 69/70 years old so it just may be time for him to hang it up.