Why the Heat do this:

Clears up the Jimmy money instantly with just Keon Johnson under contract after the season, plus two first round picks in the upcoming draft means a very short term reward for the Heat.

Why the Nets do this:

If Brooklyn thinks they can retain Butler, a core around him, Cam Thomas, D’Angelo Russell, Nic Claxton, and Cam Johnson is a very solid playoff contender. Could make a Finals run just like some of those Heat teams