This is simply a way to reduce the Celtics' obligations by $900,000. This gives them more flexibility in future trades, as they are now further under the luxury tax. They can now take on about $2 million more than they send out, and use that space either to improve the team for this year or when taking back contracts while trading away players like Bass, Green, or Thornton if that makes more sense. I'd probably keep Bynum over Pressey for purely basketball reasons, but it doesn't matter to me one way or the other really. I do think this greatly increases Powell's chance of making the team, since it's one less player in the frontcourt.