Sorry, but I don't believe that he dialed it back b/c it is OU.
It looked like he went conservative b/c our OL was struggling, the crowd noise and disguised blitzes seemed to be affecting Nico and the O, and he felt like if we ate clock and relied on the defense that gave us the best chance to win as opposed to possibly turning it over some more.
And it worked. Thank all that is good and gracious, it worked. lol
I'm not sure that CJH felt the same way that I did, but it never really felt like we had the game completely wrapped up until the last drive or so. It always felt to me that there was the danger of the unforeseen looming. I just can't personally see Josh taking his foot off the gas with the game in any sort of question just b/c it's his old Uni (that fired him for doing what the head coach forced him to do, in installing an offense that he didn't want to run).
But, rumor is I've been wrong before. I can't confirm. Once, I thought I was, but I think I was incorrect about that.