Bruce Brown Jr should at least get a late 1st or a prospect back.
NY: They give up a pick in the early 20s, and maintain cap flexibility. They get another ball handler to back up Brunson. They don't have to meet ATL's crazy asking price for Dejounte Murray. With Randle out for an unspecified amount of time, they will need more contributors.
Mavs: They get another defender who guard #1-4 who can play with Kyrie and Luka. They get off Holmes's contract. Raps get a possible 3+D prospect with OMax.
OKC: They don't need to pay Davis Bertans $5.25 mil to sit at home next year. They have a million 1sts coming up, and not enough roster spots. This team is extremely young and could use an insurance policy in case Dort or JDub gets injured. Bruce would fit in well with this team, and could be a good replacement for Giddey. Dieng's a smart player and decision maker, but he isn't contributing any time soon. He still can't shoot from 3, and he's extremely raw. He's at least a couple of years away from being a full time rotational player. He needs to go somewhere where he can play and develop.