This team needs a young stud 3. That would dovetail nicely into everything else that's happened.
Warren is ok but not an All Star candidate.
I agree with what Steve wrote above about Warren. He showed a lot of potential to be solid scorer before he got injured. He should be able to be develop into a solid starter in this league. He scores really well and moves well without the ball, which is something that is a huge plus for someone that young.
I think acquiring Aldridge would be the right move for the Suns. He should make the team a playoff team, even if it's a low seed, but that would help our young guys develop a winning sort of attitude and mindset. Getting them used to winning at this stage would help their development, I think. I'm not sure what San Antonio would want in return but a package of Knight, Bender, Len, and some picks might be enough for them. Virtually anyone other than Booker should be made available in that trade. I'd include Bender or Chriss also but not both of them. I don't see how Aldridge would hurt Booker's development since Booker isn't at the stage of being a #1 option yet, he's good but not that good yet. By the time Aldridge starts declining should be when Booker is ready to take over as the #1 guy.
A lineup of Bledsoe, Booker, Warren, Aldridge, Chandler should be a playoff team. We'd still have Ulis, Goodwin, Barbosa, Tucker, Dudley, Chriss or Bender, and Williams as backups.
The Spurs need to replace Parker eventually who has definitely lost a step, is fragile, and is well past his prime at 34. Knight could do that for them. Their system doesn't require a great distributer since ball movement is key within their offense. Knight's style of play isn't that different than Parker's either. Both can attack the basket strong, drive and kick, and Knight actually shoots 3's better. If he doesn't work as their Parker replacement he could be their 6th man since Manu is in his last year and isn't nearly as effective as he once was. Bender is a lottery talent PF they can develop and Len is a serviceable backup Center at this point with a lot of untapped potential, he's only 23. San Antonio has gotten more out of big stiff European Centers than just about any other team in the league, they might be the right spot for Len to develop further. Bender is 18 and a legit lottery level player at his age and what's he's shown in talent and potential in Europe. We wouldn't need to hold onto Bender & Chriss if we acquired Aldridge. I'd let them have whichever they're most interested in, which would probably be Bender since he's shown more range and SA's history with foreign players.