I'd agree that Hayward would be better fit as a 2nd or 3rd option on the Jazz (IF WE HAD A SUPERSTAR). But if you're building a championship caliber team, I think Hayward is more like a 4th option. For comparison/discussion purposes:
If he were on the Pacers, he'd be the 4th best player behind George, Hibbert, and Stephenson.
If he were on the Thunder, he'd be the 4th best player behind Durrant, Westbrook, and Ibaka
If he were on the Trailblazers, he'd be the the 4th best player behind Lillard, Aldridge, and Matthews
If he were on the Heat, he'd be the 4th best player behind LBJ, Wade, and Bosh.
If he were on the Spurs, he'd be the 4th best player behind Parker, Duncan, and Ginobili
If he were on the Rockets, he'd be the 4th best player behind Harden, Howard, and Parsons
If he were on the Clippers, he'd be the 4th best player behind Griffin, CP3, and Crawford