What coach can devise a successful system for a non-outside shooting two guard? If the guy can shoot, the system is going to look fine. If it can't, it won't, regardless if Popovitch or Sloan or Smart is devising the offense. To me, if you're looking for a litmus test for Smart, look on the defensive side of the ball. Smart can't help it if his two guard can't hit 20 footers, but he should be able to help it if guys don't talk on D and switch properly and get back on opposing teams' fast breaks.
But talking and switching on D won't help the defense much. Where Smart can help the defense is with his rotations. Put the guys into the game that play well defensively and matchup with or overmatch the opposition.