If you really dig in, one thing that becomes apparent is that the Jazz were not ready to handle a 19 year old player. This organization has had a strong culture with Stockton, Malone and of course Sloan. Things were a certain way for a LONG time, and dealing with youth was not a strength. AK is probably the greatest young talent success story here, and even then its really not what it could have been.
Look at the OKC culture and how they handle players from day 1. Could Kanter have handled himself better? Absolutely. He was also 19 when he arrived, a year out of high school. So he handled himself how he did... the Jazz did not have the mentorship in place. Some 19 year olds are really mature, ready to go. He wasn't. That should have been recognized and worked on instead of ignored.
I think the Jazz took notice. Trading Kanter was an admission of failure. However, Corbin was let go prior, and the Jazz brought in a coach and culture will start to change towards development.
Different organizations have different cultures, and that does affect performance. Thats reality, regardless of anybody opinion that it should be otherwise. Houston looks great on paper, but the team fell apart. Jackson, as a coach, has a ton of titles with incredibly strong personalities playing for him. His brilliance was not on the court, it was managing those egos.
We can all sit around and point to Kanter and say "he sucks, glad he's gone" or we can do what the Jazz did... realize there is room for improvement. Sometimes you just have to cut losses and move, and that's what the Jazz did. I wish we could have received more in return, but it is what it is. This trade was not good. It becomes disastrous if the Jazz fail to learn what led up to it.