I give it 6 months before we are shocked and appalled that Butler is under investigation for a myriad of NCAA rule violations.
About the same amount of time Stevens will realize he's in way over his head in Boston. Coaching an NBA team with a storied history is a whole lot different from coaching at a Horizon/A10 school in Cowtown West. Those Celtics fans will want immediate results, and if he doesn't deliver he'll be toast.
You are absolutely incorrect. It is not like he is taking over the team with Pierce, KG, Rondo, JTerry, etc. He is taking over a team built to tank. Celtic fans know this, he will have three years to build. If it is bad in three years, then he will get heat. That is why he was given a six year contract.