Yes, there certainly is more to just throwing the ball...and QB reads play a big roll.
I don't buy what you said about Chow having to make adjustments in the SEC..just because it's the SEC though. Guys like Peyton Manning, Eli Manning, Jay Cutler, Matt Stafford, etc,etc came into the NFL ready to play that style. It would depend on what school Chow went to. If it was to Georgia, Vandy, Ole Miss, and maybe others, the change would not be all that great. The issues of changing offensive styles rest more with personnel than in what conference you play in. Rodriquiz, for example, will need time some change the personnel at Michigan to fit his scheme....as you know. But just because he's in the Big Ten does not prohibit him from doing that over time.