I disagree with the characterization of passing attacks as being inherently "inconsistent," just because the completion percentage isn't 100%. The days of Coach Bryant's saying that there were three things that could happen when you passed, and two of them were bad is also passé...
If I recall correctly, the Saints lost a trip to the Super Bowl due to a blown pass interference call. Not that the Saints even did anything wrong, the refs did, but the ball was still on the ground and that's all it took. While the 30% incompletion rate is a big deal if you have no margin for error, and Bryant's quote isn't wholly inaccurate, the issue is still more complicated than that. There are many more points of failure, and passing is basically a higher risk/reward type of play.
You can get way more out of the play, but you also are taking more of a gamble. I can't recall exactly when this was or who they were talking about, but I recall well into one season the announcers noting that the Alabama running back hadn't had a single negative run. Running isn't a gamble if you can do that.
Gambling is acceptable in the NFL for instance where you are basically ok with playing the odds. In college though, there's nearly no margin for error so you can't really afford to lose many gambles. Alabama lost two games last year, and nearly lost two more. That's below Saban's standards at Alabama. Of the past 5 games, 3 have been imperiled by the lack of ability to establish the running game. You can't keep playing those odds and expect to win.
This isn't to say that I think Alabama should give up on the pass, Alabama shouldn't be overly reliant on it and they really do need to establish a power running game. For example, at Alabama, Saban has had 4 running backs in the running for Heisman. Every single year they won a championship. Alabama has also had 4 QBs in the running for the Heisman. That's a sure fire recipe for success right? Except Alabama only one the championship in those four years, the exception being when they
also happened to have a Heisman candidate at running back.
A good passing game is essential to success. But you just can't be overly reliant on it. When Alabama overly relies on the passing game it creates more potential points of failure. A power running game is also as essential in my opinion. Part of what made the 2020 offense so magical is they had Najee Harris, who was a massive difference maker. Without that the offense becomes one dimensional and much more vulnerable.
I’m not sold the Kirby/early Saban MO is the way forward just because of how the title game went last year.
It's important to draw a distinction here. Saying Alabama needs a power running game and shouldn't be overly reliant on the passing game isn't the same as saying Alabama should go back to the 2011 offense where they had 16 passing touchdowns. It's worth noting though, that Alabama had 48 passing touchdowns last year, and they lost twice and nearly lost two more times. I'm basically arguing there's a middle ground that Alabama should be seeking out.