Just kind of recapping what some other people already said in here ..
Easily just a money move / favor. Odd's are Boston will never see that pick, and if they do, it wont be for a long time. Cassell will never play here, in fact, I doubt he'll even take a trip to sacramento. Radio stations in Boston seem to think he'll be waived ASAP and return to the celts in a coaching / chemistry role .. He hasnt played a minute all year.