If you didn't see the first two sets, you missed some great volleyball by the Cyclones. Looked the team we all thought we'd be this year. But it took almost flawless play (look at Hurtt's numbers) to get it done. You knew it would be hard to keep that up on Texas home court. But we showed what's possible.
Of course, that also made the rest the match even harder to watch.
Part of the problem may have been physical strength/conditioning. ISU players that needed to keep pouring it on could not.
But more than that, I'd say it was psychological. Before the break, ISU had Texas off balance. Then, somehow, they let Texas get its swagger, and they played comfortable and cocky the rest of the match. One reason ISU beat Nebraska is that we kept the pressure on, and Nebraska made mistakes. Texas was never pushed into mistakes after the break.
It might have been interesting if ISU could have kept it close in one of the sets after break.