Smart is an interesting player. For all of his flopping, he’s actually a very good defensive player. That’s part of why the flopping is particularly annoying with him. He can defend without all of that silliness. On top of that, because he is so strong, he can defend basically any perimeter player.
He’s underrated as a ball handler. He’s a poor shooter, but he isn’t a bad overall offensive player because he is a good passer and has an assist to turnover ratio better than 2 to 1. He’s a really smart player (no pun intended) on both ends of the floor as far as understanding scheme and spacing. If he was a decent shooter, he would likely be in line for a huge contract, but because he’s such a poor shooter, it’s hard to figure where he fits in the modern NBA.