I think the other thing that Coach Napier stint has shown is that just winning is NOT enough to get attendance. He won at historic rates, never lost to a SBC West opponent and it wasn't enough.
The truth is, people don't just want winning, they want exciting offense. Coach Napier is a grinder and so are his teams. He puts A TON of value on ball protection, be it from a QB, RB or WR. Think back, did the offense turn the ball over much in his tenure? Maybe the first 1.5 years, but after that, not very much at all.
Does this play into Dr Maggards equation, I am sure it does, but to what extent, only he knows.