I'm hoping the eventual play is that neither Exum nor Mudiay are even in the rotation, you give that role to Donovan (and Joe if he keeps coming off the bench), and you give those minutes to either Brantley or a new arrival. The place that a trade has here is that I hope Exum gets traded and Mudiay becomes a depth piece.I'd even consider a change to the rotation... why pull DM early if you are going to play him with Mudiay and Green... if you have DM, Green, and Mudiay on the floor I get why Joe has struggled a bit... he's never getting the ball in that lineup. The starting lineup has played well together... keep it out there longer or sub Joe in for Royce early instead of DM.
In any case, Niang should not be playing in any scenario outside of numerous injuries or garbage time.