The team this year doesn't have many weaknesses, but at least one of them would be shot creation from the guards outside of Tamin. Toure is a defense-creates-offense guy. Batemon (at this point in his career) and Heise are spot-up shooters. You'd definitely add CuJo or Brockington if you could.
The other significant one I can think of is a backup big man. Pleta has come on the past few weeks, but I doubt you'd take him over Big Rob or Ward at their best if you wanted to retain Buchanan. Heck, I'd probably take Chatfield back at this point. He had limitations, but he was a brawler on the boards.
TJ had just never had a true center as good as his best guards and forwards. And that's okay. Those guys are rare in the first place (and thus expensive). The system doesn't require much offense from the "5" but does require a lot of them on defense. And the staff has been good at finding those guys.
Hence why I'd say, as bizarre as it might sound, that I'd want Rob Jones out there starting on the all-TJ team. You don't need a big man with high usage when you've got CuJo, Momcilovic, Brockington, Lipsey, and Jefferson out there.