I would say there are several things in play here:
1. Our level of competition has played a factor. Once we got past Northwestern, whose defense would be top 2-3 in the B1G, we've performed much better.
2. Petras has been very streaky, but at least against Illinois, seemed to be more in control of the streaky-ness. Can't deny that...
3. That NW game is unfortunately a black eye, considering we took a 17-0 lead and still, out of our 74 plays, called 54 pass plays (of the 23 rushing attempts in the box score, 5 of them were for Petras and I counted 2 QB sneaks in the PBP, which means 3 of the rushing attempts were actually called passes). Any grace given to Petras for his 1st game performance needs to flip back on BF in his 2nd game, putting so much reliance on his young QB.
4. The Wildcat certainly isn't anything new or anything I'd consider ingenious. Football trends seem to go in cycles...even when the Wildcat first came into popularity in the mid-2000's (most notably with Ronnie Brown/Ricky Williams in Miami, based on my recollection) it was simply a take on the old direct snap, single wing stuff that had been prevalent decades earlier. Maybe you are referring to the fact that we're even using it as ingenious, which I'm not sure that I agree with either, but I at least appreciate that we're using it if nothing else. To me it beats lining up in 22/23 personnel and getting stuffed at the LOS on a horribly predictable 3rd and 1 call. If we're going to run anyway, let's get the QB off the field and get an extra blocker/jet guy out there to provide a constraint issue for the defense.
5. I think he's set a relatively low bar for what performance is considered good...but it's a remarkably inconsistent bar. So on those occasions when he has a game when we execute the game plan very well (because let's be honest..."good coordinating" and "good execution" are basically synonymous, or at least the latter can be causation for the former), he can clear that bar with no problem. But Iowa is a complementary football program and throughout all of KF's tenure the offense has generally lagged behind the defense, content to control the clock, control field position, and ultimately score 1 more point than the opposition. Anything beyond that is gravy, but it's not that we're ONLY aiming to do that...but often that's what it comes to because we value simplicity, repetition, execution, and risk-avoidance.
6.
Sure, part of it is the talent at receiver...but our passing game is so much more sophisticated than previous regimes.
I found this part of the OP curious, given what we know about the Greg Davis era and the "decision point" route tree that he ran that supposedly made our offense so difficult to learn. Receivers couldn't get on the field because they couldn't understand the playbook; our WR's couldn't play multiple positions because the X position route tree matrix was so much different than the Z route tree matrix, etc...
I'm not trying to poo-poo the entire post. I will say that our offense has looked good for several weeks now and that has to do with the execution of the plays that we've run, which ultimately has to fall back on the OC whose job it is to ensure those things are happening. I also like what I see that we're getting the ball into the hands of playmakers. I appreciate that we are TE U, but those outside guys (ISM & Brandon Smith specifically) have a skill set, or maybe more succinctly, unique skills that we don't get often.
Big test coming up this week...can we block the Wisconsin odd front in both the running and passing game?