Melo should definitely have more say into what he is a part of - if he is the go-to guy, he is the first that should be heard on who he wants surrounding him. He should at least have a lot of sway in who comes in to be SG, and be able to pick out a player that can move without the ball. Not only will Melo learn from a player that can MWOB, but that will get him an outlet when he is crowded.
Melo's one unique trait is his stutter-step. He's not huge, but he's big, and when you can't figure out where he's going all you need is a SG swarming around the perimeter ready to distract you.