Another I mentioned the other day, which again isn't really a move, but what if Ainge had not traded for Garnett and instead held on to Jefferson. Would Boston then have been able to trade with Memphis for Pau Gasol and not have to give up Jefferson? By the time of that trade Glen Davis would have been a fairly decent prospect as well in addition to Tony Allen.
I would have to think that some combination of Tony Allen, Glen Davis, Leon Powe, Ryan Gomes, Sebastian Telfair, Gerald Green, with Ratliff for dollars as well as Minnesota's 1st and a future Boston 1st (maybe even another Boston 1st) would have been enough to land Pau from Memphis?
Imagine how much different Boston would have been with Pau, Big Al, Pierce, Allen, and Rondo as the starting 5 with Posey, House, maybe PJ Brown, and whomever you kept from above? Maybe that team doesn't win the 2008 title, but I would have to think it would have been a heavy favorite in 2009 and 2010 if not beyond.