I'm gonna disagree with you. Not because I know anything about football, which I don't. But as I posted I spoke with the Kansas DC along with a couple other Big 12 defensive coaches who were very impressed and concerned with with what Callahan was building at Nebraska. They thought he was building an offensive juggernaut that would be very difficult to stop in college football. But they said he needed the right players that had been in the system for a few years. Once players had a couple years to be experienced with the system that would allow the coaches to concentrate on teaching the new players plus the existing would be able to help newer players to speed up the learning curve. I'm no football coach but I trusted the ones I spoke with.
Callahan's final season in 2007 we scored 31 points on #1 ranked USC. We might have lost the games but we scored 39 points on #7 Kansas and 25 points on #10 Texas. His final season we played 4 ranked opponents and averaged over 25 pts/game against them. We shit the bed against #4 Mizzou, Oklahoma St & Texas A&M. Against Power5, including 4 Top 10 Teams, we averaged 31 pts/game. In my book averaging 31 pts/game against that level of teams is quite good. For comparison in Solich's final season we averaged 24 pts/game when you include the cupcakes. And 22 pts/game against Power5 and only played 1 Power5 teams that was ranked at the end of the season and that was Kansas St at #14. Was a down year for the Big 12.
I get the point, and have no doubt that both Callahan & the coaches you know have cerebral knowledge about this that would put me to shame... my whole issue with it was, it's an NFL concept offense that's fine and dandy when you have a miniscule talent differential at the NFL level and life-long professionals representing the top 5% of college athletes who have the elite physical skills and undivided attention needed to run a "be multiple" scheme.
You don't ever really have the personnel to run that at the college level because you have younger, less-polished guys with academic & other time demands, higher error rates, and much more one-dimensional skill sets, and getting a full 2-deep that can be brought up to speed on both knowing and professionally executing on all these concepts (while a quarter of the roster is turned over every year) - particularly when it's a West Coast offense that's heavily focused on medium distance plays & relying on teamwide execution for sustained drives - is one of those things that works in theory, but not in practice.
Against USC in '07, we were down 42-10 going into the 4th quarter and got almost everything as garbage points, including 2 TDs in the last 5 minutes. Kansas wasn't playing D with any intensity because they were scoring at will and the game was over after about a quarter and a half. That's my issue with a purely statistical analysis of the offense... the whole era was like that.