It should be noted that the Pats have one of the smallest assistant coaching staffs in the league. Compared to a lot of teams, adding another guy to the Pats staff is not a bad idea.
Though it won't stop the speculation, Josh isn't going anywhere, so he's not here to be the OC heir apparent. One poster had an interesting take that I think deserves repeating points out that although he hasn't led very prolific offenses, he HAS been the leader who help 3 different RB's have career years.
So maybe BB has brought him back to NE to help Josh further grow the Pats evolving running game, now that it looks like they have THREE real young talents to develop. To some respect the development of Vareen and Ridley over the next few years, might have a similar impact on the design of the Pats offense as the adding of Gronk and Hernandez. AND that is an exciting thought.
Other possibilities include that it could be that Ivan Fears, who is approaching 60 has let BB know that this will be his final year, and Dabol was brought back to replace him.
Another piece of speculation could arise concerning the future relationship between BB and his former protege, and love child, Eric Mangini. By going with Eric back in 2007 to the Jets, Dabol joined him on the BB schit list. The fact that he's rehabilitated himself enough to get a return shot COULD mean that BB has softened his animus against Mangini. Don't forget despite his critical misstep in taking the Jets job. Despite his rather mediocre success as DC, BB had high regard for him as a coach and football mind, and he DID have great success in coaching the DB's. That's an area currently full of young talent that can use an experienced coach with a history of success coaching the position
Eric Mangini talk will be just another point of speculation that will come from the announcement of his returning to the Pats. We just can't help ourselves.