It's comical reading some posts here, completely blaming one unit or the other.
The offense only scored 3 points yesterday, which is almost never good enough to win any football games. They occasionally moved the ball, but seldom seemed to get into any rhythm. If the offense could find any rhythm and sustain any drives, the defense gets more rest and theoretically plays better.
The defense held PSU to 13 points, which should win you most games...however they repeatedly had the ball rammed down their throats and couldn't get off the field, shortening the game for IA's offense. If the defense could make a stop, the offense gets more time on the field and more opportunities. PSU didn't do anything special or fancy on offense, either - they basically ran the ball between the tackles, right down IA's throat the entire second half. The DE's and Leo lost contain multiple times, and the LB's and DL often couldn't get off blocks, and when they did, they often couldn't tackle. The fact is the last 4-5 IA front 7's would've eaten yesterday's PSU offense alive. And you know why the defense is tired in the 4th quarter? B/c they can't make stops earlier in the game to get off the field! You can blame the offense all you want for the defense being tired, but the fact is the defense can't get themselves off the field.
How people can blame one unit or the other is a joke - this was a COLLECTIVE FAIL...AGAIN, comparable to ISU. Both units failed yesterday, plain and simple. I also think the coaches failed schematically. It seems there's a fairly severe lack of aggression on both sides of the ball, and some of the simplistic schemes don't help the execution. On offense they seldom go deep, and often run route combos at the same levels, making it easier to cover receivers. On defense, while yesterday they blitzed as often as I can recall a Norm defense blitzing, there is still limited man coverage, and it's not like they do much creatively re various blitzing and coverage packages. And specifically, neither OL or DL played well yesterday, which is where IA wins and loses games. When you run ultra-conservative schemes, it's an absolute necessity to be strong in the trenches, and IA simply isn't this year - they aren't horrible, but they definitely need to get better.