I've wondered about that myself. Iowa has an early exit in their tourney, and we win ours. I do think the grind of the Big 12 tourney took it's toll on us somewhat, although we won it last year too, and did ok in the NCAA Tourney. So who knows?
Iowa seemed hungrier than we were though. They had a bad taste in their mouth from the Penn St loss. We were high on our horses, and the national media was all projecting us to the Sweet Sixteen or Elite Eight before the tourney started.
Everything together spelled disaster for us. We really should have seen a letdown coming, but I didn't see it.