Like the Bennett trade a lot. Haven't had someone that talented at the TE position to line up alongside Gronk since Hernandez.
I think the Long signing could prove to be a good one. I think he'll be more of a situational player, though. If he's healthy & not being overused, I think he could be a real boon.
If Belichick gets much out of Brown, McClellin, or Cooper, then its a bonus. I think Brown is there for a roster spot battle and/or Lewis insurance. McClellin will be fighting for a roster spot in training camp (severely underwhelmed in Chicago). Cooper is the interesting one. Injuries more than anything have plagued his career. He probably has the most boom or bust potential of those three.
I think this Bennett move puts Amendola on borrowed time. My guess is the team will be looking to renegotiate now or cut ties.