Rondo/Crawford
Lee/Terry
Pierce/Green
KG/Sullinger
Gortat/Randolph
As long as the new coach is able to get back Lee's confidence and can actually use Terry properly (which isn't that hard), that looks like a very dangerous team in my opinion.
In addition, for all those concerned about Gortat being a rental, why are you guys automatically assuming he's gone after one year? He already said that he preferred playing on the East Coast as opposed to the West as he currently does because it's a few hours closer to Poland. Plus, he was lost in Dwight's shadow in Orlando and has been stuck with a putrid Phoenix team with no hopes of winning in the next few years. I'm willing to bet that he'd be quite fond of being a critical piece in a winning environment should he come to Boston. I'm not trying to say it's a guarantee, but there's actually reason for Gortat to stay in Boston should he come.