Blair, for all his flaws, is still an NBA quality player that has survived in the league for three years and even started on one of the best teams in the league. While he would be available next season as a free agent, he could still be attractive to a team like the Heat. They don't have a lot of money, so they need a cheap big they can bring off the bench. Blair can do the things they need him to do, namely, rebound, run the floor, and finish on Lebron's passes. And why not give up a late first rounder in a weak draft. There is no guarantee that the person they draft late will be as good as Blair, or even make it in the NBA at all. Blair, for his flaws, is still a proven commodity that a championship team would gamble on.