Things would not have gone better with Cael.
I think the question is based on the wrong premise - that Cael has unique ability to keep a bad actor on the straight and narrow.
That's not his strength. His program is far and away the best at getting the most out of good talent. That 45-5 or whatever it is record in Friday night matches unambiguously proves that.
But part and parcel of that is that he like all great coaches has his type of guy. You can't just put anyone there and he molds the clay. They've got to be within certain parameters to be moldable. Suriano, who hasn't almost killed three people for no good reason in a car crash and I can't picture being accused of the recent alleged crimes, wasn't the right kind of clay. Ferrari - no.
And in response to the inevitable "what about Andrew Long," doesn't that prove the point, a guy who has those issues isn't going to reform just being there.