We had a ton of success defensively against Arizona. They scored 34 points, 14 of which were scored by their defense and special teams, and another 7 of which were scored on a whopping 8-yard drive after a blocked punt. Beyond that, their offense had exactly one touchdown drive. It was a killer because it was at the end of the game, yes, but if your defense only allows one touchdown drive on the road, you should be fine.
I was basically talking about points allowed in general, but ya you're right on that one. I wasn't arguing against JD's posts either because I do believe the offense was the problem. Case in point, the last 3 games of the season against NW, OSU, and Minny, Iowa averaged 19.3 PPG and lost all 3 games. But while going 6-2 the first 8 games, the O averaged 34.1 PPG while having such opponents as Arizona, PSU, Mich. St., and Wisky in there, which are generally some pretty tough D's to face.