As committed to the run as CNS is, to me there are three possibilities.
One, we were worried about getting Henry injured and having to rely on T. Jones, so you use him sparingly. Two, you've listened too long to opposing coaches on recruiting fronts telling big-time wideouts "Bama doesn't run an offense that will utilize YOU as a primary part of the game plan - see how they abandoned AC in the semifinal game this year." Three, OC's today aren't usually praised because they run "traditional stuff" - they are hailed as innovators when they (shall we say) find a way to get the ball to their best receiver even when he's blanketed and by having an overachieving QB have success against a national semi-finalist. None of this happens when you repeatedly hand the ball off.
In the first scenario, you took your best weapon in this game away by playing "not to get hurt" instead of "playing to win". In the second, you're allowing the inmates to run the asylum- which will always lead to a wavering commitment to a specific philosophy. In the third, you have allowed ego and perhaps career ambition trump what is your best formula for success now. Of these three, I'm hoping it was the first... because the other two are VERY disturbing to consider as realistic possibilities.