Your besmirching of Greg Davis made me dive deeper. Here's his Texas offenses in terms of national ranking for scoring:
1998-2010
11th, 12th, 8th, 6th, 16th, 6th, 12th, 1st, 6th, 15th, 5th, 3rd, 88th
That's a bad OC?
Texas' offense fell off a cliff after McCoy left, not Young.
Young's years are in bold.
Blindly, let's do TT and Mullen.
49th, 24th, 3rd, 4th, (new OC) 10th, 43rd, (new HC) 71st, 78th
Boy, Mullen doesn't look so great pre-Tebow. And things fell off a cliff after Tebow.
I'm not sure what this shows for either QB, but I don't think it says anything FOR VY and against TT. If anything, it's neutral or leans for TT. But I'm not subjective.