i don't believe Green is crucial to the Warriors success. He was starting to have some really bad performances in the playoffs (Stephen A Smith went off on him in the Finals). And his tough guy act was becoming more distracting and counter-productive, especially with all the technicals.
and though his role playing, at least historically, has been a key to the trio's success it won't translate to other teams in trade value. He was bad in the year Curry was out.
also, it's BS that the Warriors can deal with his attack "internally." The NBA and/or Player's Association will intervene. A punch thrown that way by a guy that size could disable a player, if not kill him (i do believe it has happened in the NBA in the past)
and it WILL effect the other players. They're all stars with pride, machismo, opinions and attitudes. To know that the guy next to you in the locker room or in practice could react in such an aggressive and oppressive way if you disagree or talk smack won't sit well in their psych
add all that to my predictions for the season, or as i will say, henceforth -- Book It!