I would trade Hayward in a heartbeat right now.
His value is OK, barely.
I do not see any way that even allstar Utah hayward works with 2 superior players in Kyrie, and potentially Davis.
Also, Horford, at his best, is that secondary ball handler, playmaker.
All this would relegate Hayward to remold his game into a defensive 3pt shooter who can attack the basket in the halfcourt if the defenses rush him.
I just do not see that skillset from him at all, never did in fact. He is like Demar Derozan, needs the ball to be effective.
I would move him for front court help. I can see Denver, Charlotte, Detroit, Clippers, Lakers all being interested.