I think Tom realizes at this point in his career he needs a good compliment of solid wide receivers, tight end and running game. Unfortunately, the pats couldn't sign Tom and have the cap space to give him what he needs to be successful. The pats offense is rebuilding and Tom realizes he doesn't have time to break in younger receivers or possibly a rookie tight end (you could see his frustration on the field last year). I also think BB likes what he has in Stidham and he is a better fit to work with Harry, Meyers and possibly a young tight end. It will be interesting if Tom's new team try's to trade for Edelman. Endings are never fun especially when you have to say goodbye to the greatest QB of all time.