This has been the case for years. Look at the ypc in this matchup. Granted, this year the ISU defensive line is better, so not a fair comparison, but other years that’s been flipped and still largely equitable.I thought the ISU o-line played fine Saturday. Sure they weren't opening up huge holes in the run game so I won't say they played great, but Purdy oftentimes had several seconds to throw so it's not like he was running for his life.
I think the problem is people expected the o-line to be a plus group, and if that were the case they should have been able to do more against UNI and a young and inexperienced Iowa d-line.
If the definition of a plus group is to bail out a mediocre Manning and play at other units, including RB, they’re not it. Very few units in the country are that way.
This OL isn’t getting in the way of otherwise a good offense, but it’s not creating a good offense out of an otherwise poor unit/scheme