With so many top tier young players coming in, I want Smart and AB on the team to show them how to play the correct way. We have already seen Brown and, to some extent, Rozier make vast improvements on the defensive end and the way they approach the game.
With that said, Smart is going to be paid less, is more versatile, doesn't mind coming off the bench, and is a prime example of how a player can be effective in many ways even if he isn't scoring. AB gives incredible effort, but Smart is KG-level intense.