I think the idea that Duke completely choked the game away isn't exactly true. I have been reading that over and over again today. They did go into a shooting slump, and had a couple of bad turnovers. But that kind of poo-poos a tremendous effort by a Houston team that has done that over and over again this year.
Houston's def down the stretch was insane, huge block at one end with less than a minute left, another huge tip / steal on the inbounds pass. Great effort by Houston on the off boards to gather the missed 3 point attempt / dunk to get it down to a 1 point Duke lead. Great def on Flagg on his missed turn around with less than 20 sec left. Hand right in his face.
Yes, there was the Duke missed front end of the one and one, and there were a couple turnovers. But Houston slowly chipped away at that lead for over 10 min. It was more that the experience and never quit hustle / attitude from Houston finally sucked the life out of a dead tired Duke team by the end of the game.