I do give him credit. He's never, as some have suggested, hidden himself away. He's more than aware of the heat from fans, media, and the internetz and has actually handled that quite well. I do think he waited too long last season to take the heat off Petras. Also, he must be a great dude. And players must appreciate his coaching, otherwise the offense wouldn't be in the black when it comes to portal moves (as of this season). I don't think anyone can identify a measurable change in recruiting. Sure, they lose out on a few, but that's nothing new. No way do I believe the caliber of players coming to Iowa is measurably different than any other era. So there's all that.
Also, I think it's bad form booing players (I did not like Petras being booed). I'm not really a fan of the "Fire Brian" chant. But, I get it. Fans feel completely powerless and hopeless.
I can say this.
If you take average yards per play as a measure of the offense, that in and of itself does not really tell much of a story. However, you would expect a team to hit that average roughly 50% of the time, right? And for the first 18 years of the KF era, they exceeded the average 10 times. Statistically, close enough to 50% for me.
That average is:
5.39 yards per play
Here's the average yards per play under Brian:
2017 5.1
2018 5.4
2019 5.5
2020 5.4
2021 4.7
2022 4.2 * **
2023 4.3
Statistically, I'm going to call it, at or below average, 100% of the seasons as OC. Fine, he's still 1 for 5 if you want to count 2019.
* Denotes a historic low in the entirety of the KF era.
** Denotes a historic low in the average yards per play allowed by the defense (a pretty astounding 4 yards/play) in the KF era.
FTR, the defense is performing well better than the average against the historic average since 2018. And just might be the reason for a 5 year period of showing up in the final polls. Also 2020 was weird. Again, none of this really telsl 100% of the story. I sense a stronger correlation between the defensive average and 'success' than I do offense.
That being said, there is only 2 years in the KF era where the offense was below average on yards/play and wound up ranked. That was 2004 and 2016. I will also note that the only times we saw 2 consecutive years below the average on offense prior to Brian were 1999-2000 and 2012-2013.
I am also an amateur #s guy. I think there's value in them. But I don't really know how to do them beyond a very basic look. Maybe when I'm done paying out the arse for out-of-state tuition at Iowa, my actuarial science major son can do a better job for me.