Before heading back inside, my step father did congratulate Pop on a good season and Pop thanked him and said "well, it didn't finish like we'd planned, though." And my step father commented something about maybe in the offseason a front court player can be found etc. Pop said something like "yeah, that'd be good, but the real problem is our guys just didn't play well. We've got a good team but guys didn't play up to their capabilities, unfortunately." They talked on a couple of other points as well...
I know this isn't exactly breakthrough insight, but it was a personal conversation for what its worth, and while I'd never expect Pop to throw his team under a bus, it is interesting that he's happy with the team makeup, but not with the effort. In other words, Pop didn't say "well, they played their butts off but the ball didn't go through the rim." He basically said that the effort stunk. I think that most of us here know that there were a couple of Spurs players who did not put forth a very good effort, for whatever reasons.