I really think Butler is looking at being no better than about 6-7th in that new conference for the next couple seasons. The roster is, uh, bare. Extreme example, look at the PG situation.
Stevens is a helluva bench coach, one of the best in college basketball at game-planning on relatively short notice and controlling his team/the game from the bench. But recruiting to Butler was a huge negative. As much of an allure as BS is, competitive disadvantage was large. Not offering kids until June 15th as they enter their Junior year is problematic for small school Butler.
I think Collier was well aware of the recruiting issues and that is why I suspect you will see Jordan get the job if it can be worked out. Miller is a little too green for my liking but we will see. Collier did state they may have a new coach by end of day tomorrow. I suspect he knew as soon as BS knew. I think it did kind of come out of nowhere. Keep in mind, BS didn't even meet with the Celtics in person until Wednesday morning in Indy.