I'm a big Butler fan, he's an elite defender and a borderline #1 offensive weapon who isn't afraid of crunch time, I think he and Hayward if they could clear space to make it happen is the second best 2/3 pairing in the league. HOWEVER. We still have the IT problem, adding 2 scorers makes his offense less important but doesn't solve his defense issue. We'd need to move Thomas to get a more well rounded PG. I do think a team with a good more rounded PG, Hayward, Butler, Horford, Brown, Zizic, etc could be a contender, and the ages/contracts make it extendable past the likely 2-3 year window before the Warriors have to break it up.