Well, it does kind of suck for the player that FOUND OUT he's getting traded midgame. Like, that's just straight up disrespectful.
As far GM is inking the paper mid-game that's fine. Just inform him of the decision after the game. I felt the Mavs did Harrison Barnes dirty there.
As for LeBron, he's a drama queen as always so he should keep his mouth shut. What say does he have in this while he's been too busy grabbing Rich Paul and Klutch Sports around on that Anthony Davis thing for the last two weeks?