Gonzaga V Arizona

I watch a little bit of this game and I was a bit perplexed by Arizona. Gonzaga played a 2 3 zome quite a bit and Arizona never had anyone go to the free throw line area in the middle of the zone to try and make Gonzaga get out of position. I was very confused by what they were trying to do to beat the zone. If anyone saw the game and has any insite as to what Arizona was trying to do please explain it to me. Thanks.