Outgoing: Nate Robinson, Glen Davis, Avery Bradley and Von Wafer.
Incoming: Boris Diaw, DJ Augustin and Derrick Brown.
Why for Boston: We sacrifice offensive explosiveness/aggressiveness to gain steadier players (Diaw and Augustin) who move the ball and play smarter in general. Diaw's superior mid-range J, 3-pt range, superior passing/ballhandling make him a better fit for us than Davis, while his defensive versatility and inside/outside game allow him to play a similar role. He's not really an option at the 5 like Davis, but we've got so many 5s that it doesn't really matter. Augustin's a better decision maker and floor-manager than Nate, not a threat to explode for 15 in 5 minutes like Nate, but solid and very capable offensively. Derrick Brown is a long, athletic combo forward for bit duty off the bench and some potential for more.
Why for Charlotte: On a team as impotent offensively as Charlotte, Diaw and Augustin's deference hasn't done much good. Robinson and Davis give them assertive offensive players who will attack aggressively and score in bunches. Ditto Wafer if they want to keep him. Bradley gives them an upside guy to wait on with Tyrus Thomas. They also save quite a bit of money with this trade.