Actually, there is a fairly reasonable explanation for that decision. The Lady Vols were up by one with 15.6 sec left in the game. Gonzaga was in the position of fouling to avoid the Lady Vols running out the clock. The Lady Vols were not in the position of needing a quick score and there would be time left on the clock after any free throws allowing the coach to use her last time out at that point. In fact, the Gonzaga player was trying to foul Horston when the ref blew the whistle and called traveling.
There are plenty of other coaching decisions in this game that deserve scrutiny, but the focus of so many of the fans on this paticular one is, in my opinion, misplaced.
Jim