I feel like our perimeter is set. I'm scared to mess with it, because our defense is simply scary. IT is an all star, Bradley/Crowder are great starters, and Smart/Turner/Jerebko are great bench players. Championship-level perimeter, and ability to cut Jerebko and/or Turner's minutes in the playoffs. We also have the ability to go with Crowder or Jerebko at the 4.
Kelly/Sully/Johnson/Zeller/Lee are all solid bigs, but what we really need is someone who can stand out. More length, more athleticism, more interior presence. Kelly is the only big guy I would really think twice about trading at this point (so long as it's an upgrade).