Pro Football Focus (PFF) first launched in 2007, and not many offensive line units have been ranked higher than the Iowa offensive line this season.
Many fans and outside observers look at the Iowa passing game's struggles and base their assessment of the offense as a whole solely on that.
While it may be true that Iowa's passing game did not improve as many expected, that does not mean the offensive line did not pave the way for success.
The Iowa passing game never got going this year, but Iowa had so much success running the football that it did not matter.