Simple as the title and everyone stays undrr the Luxury Tax...

The Knicks add depth as they push to make the playoffs/survive the play-in. Gary Harris is an ideal Thibs style player and Bamba adds depth while Mitchell Robinson is hurt. iHart has been an awful fit as well so it allows the Knicks to gage his value while having insurance behind him once he's dealt

The Bucks get Reddish on the cheap, only sending out players who are already out of the rotation and 2 2nd round picks. Idk why the Bucks love Reddish but they've shown interest and this allows them to also pursue Crowder still as they have their assets for that trade (Allen/Connaughton)

The Magic get rid of 2 players who are on the block for multiple 2nds and buy out candidates on expiring contracts. Rose's final year is a team option and my guess is the Knicks would not deal him here unless there was an agreement pre-trade with the Magic to buy him out after this is completed. Oh yeah... the Magic also save almost 5m this year on top of everything, even if they pay full price post buyouts