I figured the Adjusted Net Yards per Pass Attempt for both Arnaud and Tiller so far this year. I took total passing yards and then subtracted sack yardage (per ESPN play-by-play) and subtracted 40 yards per interception, then divided by the total attempts. The results?
Arnaud: 3.321 ANY/PA
Tiller: 2.783 ANY/PA
So just to continue to belabor the point, both quarterbacks are performing poorly but Arnaud appears to be better right now.
Arnaud did that against a top 5 defense, a Big 12 team that is undefeated, and a good Northern Illinois team.
Tiller did that against UNI. A below average UNI team with a bad defense