Marcus Smart is a valuable but polarizing player. He is entering the final year of his contract next year and represents one of the few movable pieces on the roster, if Danny wants to shake things up. He's had a recent stretch of costly mistakes/decisions so I think now is a good time to revisit this topic. Obviously, there's a variable we don't know, which is his league-wide value but let's assume you can get a starting-caliber player for him or other valuable pieces (i.e., young player(s) with potential and/or picks).