What went wrong in Oregon's blowout loss to Arizona?

“U-OF-A” chants rained down from the traveling Arizona fans over the crowd in Eugene, as the No. 9 ranked Arizona Wildcats comfortably defeated the Oregon Ducks in their Saturday matinee matchup. Arizona, fresh off an upset loss against unranked Oregon State Thursday night, looked energized and hungry to get back in the win column. For the Ducks, a win Saturday would have put them on the map nationally — and given them an extreme confidence boost heading into their southern California road trip. So, what went wrong?