Hayward's performance last year was way below what you expect from a max player. Horny's endorsement is the only thing he had going for him, IMO, and its not enough for me. Chandler Parson's performance was much more impressive but paying him double or triple what PJ will get doesn't get me excited either.
Whats necessary is to fix the rebounding at PF - Markieff is better than Frye but he's still substanially subpar and his defence is worse than Frye's.
I see no way Hayward or Parson's get max money. Upgrade at PF is a big need. But only good players at that position are joing to be available via trade.