What are you basing this on? Hayward's vanilla dunk on a fast break, or his SICK fail attempt last night? Hayward jumps higher than Morrison, but that's all he has a clear edge on (and that probably matters least for a perimeter player), if athletic testing at the combine means anything. Morrison's lane agility drills were better and his 3/4 sprint speed is practically identical. Morrison also has a 2" reach advantage. Whether you want to compare Morrison pre-injury or post, take your pick. He wasn't good before he got injured, either.
Hayward isn't and never has been athletic by NBA standards. If he doesn't learn to shoot, he'll be out of the league the first chance a team has to dump his salary. He doesn't have the size, strength, or athleticism to make anything happen the way Brewer or Evans does. Homers of his can bookmark this and come back to it and point and laugh if I'm wrong, but if he makes anything happen, he has to be a shooting threat first.
Send him Hornacek, and send him to the D-League.