Matta is partially responsible for how they play. He recruited them, he coaches them.
Why is it that Matta gets a pass for bringing in a slew of lazy players (Amir, Thompson, Scott, Loving) over the course of four years?
Foul shooting: Why did OSU finish 225th out of 345 Div I schools in free throw percentage last year with essentially a whole different squad?
Craft was never good offensively: Doesn't that mean he had a good opportunity to improve?
Indeed, UC was a national contender under Huggins. However did you see what Mick Cronin was left to work with when he first became head coach? Nothing, nada, zilch. Conner Barwin, a walk-on from the football team, was their starting center at 6'-5". Cronin has built that team up from nothing. Xavier has got to their highest ranking without Matta. This has happened in the last couple years.
Honestly your post smacks of "can't we just leave Matta alone", I like the guy too. He is personable, honest, and represents the university well. Unfortunately that not all he needs to be.