Tatum is also already willing to play the 4 - how long did it take Melo to concede that he should be a small-ball 4? And is that the role he's filling in OKC? Asking - not sure, myself.
In my opinion, Melo should be playing the stretch 4 in OKC exclusively. But frankly, he can't defend opposing forwards.
Honestly, PG should be playing stretch 4, too. But he doesn't do that. Great.