First things first about Arizona’s defense: shockingly, they aren’t total ass this year. Or, at least, I don’t think they are. But also, wait... maybe they are? No, pretty sure they’re fine.
Statistically, they’re giving up 29.3 points per game (that’s .1 point per game more than Stanford, for those counting), but without their first two games of giving up 45 and 38 points, that drops drastically to 20.3. But that slate wasn’t exactly against consistent offensive powerhouses: Texas Tech (usually high-power, but not infrequent crappers of the bed), Colorado (pretty balanced), and UCLA (haha).