Petras is a serviceable quarterback if given a perfectly clean, long-lasting pocket. Give him any modicum of pressure and he turns to shit in an instant.
Given Iowa's mediocre and inconsistent offensive line play, that was a perfect storm for a totally inept offense.
Could Brian maybe call things better to overcome those deficiencies? Maybe a little. But I don't think even the best OC in the world could have made much lemonade out of Iowa's basket of lemons last year.
What is funny is I think Iowa is likely to look at least average on offense this year with a good QB, a slightly better line and a couple of legit receivers. And all the armchair QBs will be pumping their chests about how Brian "finally listened!" to their complaints. BAU.