The title threshold needs to be a lot lower for players today than back in the 50s-60s when there 9 teams in the league. And clearly it is as KG and Pierce have been honored.
But if Smart is here a few more seasons and wins a title to go with a few more All-Defense honors, I think he’s given the honor. 10 years, 4-5 All-Defense honors and a title? In the modern era, that’s a special career for a player with a single team.