Cant speak on th X's and O's, but numbers are numbers. He has been a very successfull coach in his career. Helped take the Nets to back to back finals and has taken perenial losers like the Hornets from the bottom to the top of the West.
Granted he has to have the best PG in the game (both with the Nets then Hornets); but you still need to credit the coach as well.