Misiorowski started an impressive 20 games last year. The downside, he barely managed to average 3 innings in all those starts. He threw 6 innings once and 5 innings just three times. Am I missing something, I don't recall him coming off some major injury or anything. I get he is young, but you would think he would pitch a bit more than that. Given, by the middle to end of the year he started not pitching all that great, so he didn't really deserve to sit out there 5+ innings.
Josh Hader was consistently throwing 5+ innings and 6 innings a lot.
This year will probably be pretty telling. He has three pitches that are decent+ (I think), but his command is awful. He will probably benefit from the Brewers not being in a great spot to compete (compared to when Hader came up) and they will probably be more patient.