This is a tough question to answer because it depends on another decisions we have to make. Will we resign Rondo and how much cap space will we have left? Will we build around Rondo-Gay-Cousins? If yes, I would prefer a defender that can still be effective when he does not get a lot of shots in the game but can also make an open 3 cinsistently, so basicaly Courtney Lee.
Starting 5: Rondo-Lee-Gay-Wcs-Cuz
Now, if we trade Gay for a wing defender like PJ Tucker suddenly the whole dynamic changes. We would probably need more offense from our SG but we would also have more cap space so we could try to sign Bazemore or Fournier.