but is defense allowed him to get minutes and I think the Warriors saw something in him and felt they needed to get him minutes in order to properly develop him, but he was terrible.

In fact, Green's improvement is the biggest reason I have a sliver of hope for Exum. Jazz can always give Exum minutes because of the D, and hopefully he'll figure our the other parts of the game along the way - playmaking, passing, creating, shooting, creating his shot, rebounding, getting to the line, etc.