I don’t think it really moves the needle.
3 years straight, the Knicks have played better, much better infact, when Barrett is off the court. This year they're better on both ends when he sits.
They're replacing him with a player who is better across the board and has a real defensive impact.
Maybe Quickly will make a big leap with a larger role, but I think the Knicks improved a lot, at least for the near future.
I'm very surprised to see Toronto trade what has been a highly sought after asset the last couple years and not get a single 1st round pick back for him. Not only that, they took on a bunch of money in Barrett's contract. IMO, the "Barrett is a Canadian!" factor played way too heavily in their thinking.