The questions with all of the European guys are the same as with any other unknown -- there is no doubt that they can coach, but can they gain the respect and control an NBA team? Because that's really the game. I don't for an instant believe that the NBA has all or even most of the great basketball coaches in the world. Its got some of them to be sure. But the average NBA coach isn't necessarily anything special basketballwise. Most of them are just ex-players with various degrees of basketball acumen. But the thing that they have, at least even the moderately successful ones, is the ability to connect with and gain the respect of an extremely difficult group of "subordinates" -- more difficult since at this level the subordinates largely run the show rather than the coach.
That more than the Xs and Ox is why a guy like Whis is such a ridiculous choice. Why college coaches, some of them great/legendary college coaches, routinely fail in the NBA. And a major question mark about the European options. Can they adjust? Can they gain the respect needed? Because if not it does not matter how legendary they are, they will fail in the NBA. One of these days an NBA team is going to take a shot at a European coach, its just inevitable. And if it works out, others will follow. But the question is, do we want to be the guinea pigs? Any offbeat coaching choice at this juncture has the potential to set us back years, or at least retard our progress, if it does not work out.