I see everyone is quickly talking about buying the best FA available, almost as if they have forgotten about Pop's ways. Assuming Duncan retires, why not move Boban up? They did so with Splitter, Green, etc. albeit there were growing pains.
We aren't going to be able to re-sign him if we don't have the role for him, especially considering some lower level team will almost undoubtedly overpay him. That way we can keep lazy Diaw with his contract, and add DEPTH, which is necessary for a team run by Pop.