There are some positives that come with hiring a coach who has zero NBA experience. Otherwise, pro organizations wouldn't continue dipping into the college pool.
However, not many of these coaches have been successful at the pro level. Leonard Hamilton, Reggie Theus, Mike Montgomery and Tim Floyd were some of the more recent college-to-pro coaches who failed to make the transition.
Both John Calipari and Rick Pitino had up-and-down tenures as NBA coaches, while Billy Donovan lasted almost 20 minutes on the job.
Brad Stevens will be the newest coach to test his luck at the pro level with no NBA experience. He'll enter Boston in the midst of a rebuilding process, and though the situation isn't ideal, Stevens should have a long leash to work with.