Not otherworldly like Cam of course (once in a lifetime talent), but Nick Marshall wasn't an otherworldly QB in 2013 on the way to the NCG. Heck, Nick didn't even get drafted as a QB in the NFL but was good enough in Gus' offense to go 12-2. That says a lot.
The best Auburn could muster WITHOUT a mobile QB in Gus offense was 8-5 with Chris Todd (2009). Granted, 2009 was not a great year for our defense either. 2014 is still an anomaly to me, as it's the worst offense Gus has had with a mobile QB. We missed Jay Prosch especially that year.