A quick note as a backdrop here: A source with knowledge of the Spurs’ thinking is quick to make it clear that this monumental choice will be, first and foremost, about what’s best for the organization and not based solely on personal relationships. Still, it’s worth monitoring and chronicling the deep ties here. What’s more, there has been one potentially significant development since Self found himself addressing these rumors when they first surfaced back in April: His program is under investigation for NCAA violations, and all of a sudden it’s fair to wonder if now might be the perfect time for him to take on a new challenge. Again, of course, that’s all depending on Pop and what he wants to do.