Look, the offense is much worse even though the players are mostly the same. The defense appears to be much improved but that's largely because Tyson is one of the best in the game.
It's no wonder the one change that coincided with the the Knicks drop from mediocre to bad. Mike Woodson. He is a terrible coach in every way. Well-coached teams know exactly what to do against the Knicks because they're so predictable. Check the Knicks' wins this season. Pretty much a who's who of the worst coaches in the NBA.
Look, it even says so here: