I’m no expert, so let me preface what I’m about to say with that, but I don’t think Iowa’s system is that archaic. If Iowa had a stout offensive line and a couple wide receivers who could stretch the field, I don’t think we’d be talking about the style of offense.
It’s looked bad because our OL has been terrible and has only allowed QBs time to throw quick, short routes. So that’s first and foremost. Second, Iowa doesn’t have speed at WR. You can’t have explosive plays in the passing game without it.
So, no, I don’t agree the system needs a complete overhaul. Iowa needs an upgrade in players. Iowa also plays in the B1G Ten. They need to be balanced and they need to run the football. If Iowa can drastically improve the OL, add a receiver or two via the portal, and bring in an OC who’s halfway competent, the offense will be fine.