Stevens is the perfect type of coach for Smart too. It would be very easy for a typical NBA, even college coach, to bench Smart after the fine and/or after the second technical.
Stevens is smart (pardon the pun) enough to know that while those are negatives for the team, they are slight negatives, because they are born from Smart's relentless competitiveness and effort. Stevens will figure out the best way to harness that and when it's complete....watch out NBA.