He's doing a great job of having the players play hard and play defense, which is very hard to get young players to do. We've improved a lot every year. He's doing about a good a job as you can ask.
Offensively it's not the prettiest, but the personnel for great offense is capped at a certain point, but it could be better in terms of creativity sometimes. However, I'd take a look at
https://twitter.com/FawzanAmer_ who breaks down a lot of Mose's plays, even the ones that create great looks and end up in misses, or pinpoint where certain guys end up in wrong spots because of their own mistakes.
I don't ascribe to the notion that being a fan means always criticizing the coach and wanting him replaced. Knicks fans did it for years with Thibs, Bickerstaff at the start of this year when the Cavs were around .500 had so many threads pop up about replacing him, Houston fans you can honestly copy + paste the comments here sometimes for "Why Ime's offense so bad? Please get him an offensive assistant", Hawks have replaced their coach 3-4 times in the last few years and are still mid at best, with Quin Snyder easily being their best coach and still struggling.
Is Quin Snyder a bad coach? Did Thibs and JB suddenly remember how to coach again when their roster miraculously improved?
If we ever get to a point where he can't get the players to buy in defensively and we can't get over a hump, sure, replace him, but he's gotten an injured, offensively starved YOUNG team to its best start in 12 years and we massively improved last year as well.
That's why I defend him, because people will hate a lineup and want him gone and it's just like.. okay lol.