Is it optimal for floor spacing, playing in a lineup that features Sidibe and Guerrier, both of whom only score within the shadow of the basket? Marek does most of his damage in the paint, as well. That's what I mean by compatibility.
Certainly agree that Marek is unselfish, that he is a good passer, that he can handle the ball in the open floor, etc. Maybe as a senior he shows more outside shooting.
Maybe Guerrier doesn't start. But I think he'll end up being our most effective inside scorer and rebounder -- tough to keep that kind of production off the floor.