Connolly's really going hot right now, and Briere always looks like a good pick-up. Tricky thing with these guys is they're both long overdue for their yearly injury. Neither would be a bad pickup as long as there's something to replace them with if needed.
You could make a case for dropping Fisher for any of the 3 centers and probably be right.
I'd try to trade Tavares before I would drop him. Names are worth alot in fantasy sports.