No guarantees here (how could there be when the guy has never had a winning season in the NBA), but Muss was certainly one of the reasonable choices out there on the market. A promising young coach who was almost sure to get another look from somebody out there.
Think he's a good hands on Xs and Os guy, and I think initially at least he should be able to drive the team. Should be in pretty good shape to start next year I hope. The question will be whether he eventually wears out his welcome like he did in Golden State. Doesn't matter how good you are on a chalkboard if your players just stop listening to you.