Coaching in the NBA is a fickle thing, especially when it comes to assistant coaches. They are simultaneously very important, but also a bit overblown by the media. You can have the best assistant coach bench ever seen, but at the end of the day, it’s up to the players to execute.
However, when your team has title expectations and you’re employing a second year head coach, the right staff can go a long, long way. Coming off last season, the Celtics front office had the same thought: get the right coaches in and this team could go up another level.