No. Just no.
It's always better to try to make more talent work, than to trade talent for less talent, just because the pieces seemingly would fit better.
Besides, maybe its Hayward's fault that he isn't playing well with Irving, not Irving's? Hayward has never played with a player like Irving. Why is it Irving's fault?
Tatum plays well (sometimes) with Irving. Horford plays well with Irving. Smart is playing the best basketball of his career with Irving. Morris plays well with Irving.
Brown played well with Irving last year, but has struggled with his new role this year.
Honestly, I love Rozier, but if he isn't fitting in well with Irving, you side with the superstar, not the potentially solid starter.
So the three that seemingly aren't playing well are:
Rozier - Who cares?
Hayward - Injury and hasn't played with a guy like Irving before
Brown - still developing and adjusting
What's the problem? Why would anyone trade a superstar because the role players aren't playing well with him? Maybe we should get a guy who plays better with Irving, instead of the other way around. Keep upper talent (Irving, Brown, Hayward, Tatum, Williams) and get guys that fit around them.