The Bucks just lost in round one of the playoffs, last year they lost in round two. It may be time to try make some roster improvements.
Rozier provides another strong scoring option who can catch and shoot or create his own shot, now that he doesn't have to make up for Lamelo's lack of defensive abilities he will find defense easier. Hayward can (mostly) fill Middleton's shoes as an efficient shooter who can playmake and defend.
The Hornets may want to embrace youth and shed Rozier's contract and get a 3 and D player in Grayson Allen who fits next to Lamelo.