It makes some sense, I guess. McGee is an athletic rim-runner who plays good interior defence. Blocks a lot of shots and alters some too.
However, I'm struggling to see the point of difference between McGee and DJ. DJ is more efficient and less foul-prone, McGee does everything else better. Neither can defend the perimeter, both are old and past their prime, and neither are starter level bigs on a title contender anymore.