I have been surprised, somewhat, that people have forgotten how good Hayward is. But I guess not too surprised, given that we barely saw him in a Celtics uniform, and he hasn't played in months.
Kyrie is a different story. We are talking about the MVP of the basketball world cup in 2014 at age 22, on a team that also had Steph Curry, James Harden, and Anthony Davis; one of the most deadly scorers and ballhandlers in the league; an absolute assassin in the playoffs and a guy who hit one of the biggest shots in NBA finals history.
There is no way they are trading Kyrie in favor of keeping Rozier. We are talking about two different tiers of players here, even if you assume Rozier has the chance to be an all star. They are trading Rozier if they get anything approximating a late lottery pick, in my opinion. And I think they have a chance to get it.