You're right and what I'm about to say is not trying to be argumentative.
If I had to think of the best and most important individual play by a Texas QB this year, I would say it was the Arch TD vs. A&M. 4th and 2 from the 15. If Arch isn't in right there, who knows if we get the first down or not. Hell, if Arch would have been tackled for a 3 yard gain and a first down, it's possible we don't score a TD (based on recent red zone issues). When you watch that run again, he didn't try to get a first down. He tried to score a TD. And it was an impressive athletic display with toughness to get to the pylon.
The point is he showed the killer instinct. We scored because of an individual effort by Arch. Be aggressive, break their fucking will. Quinn doesn't show that type of mental toughness. I like him, he's got a cool demeanor that's probably helpful to the team in some ways. But football is an emotional game filled with momentum swings. We need our QB to lead. Players feed off of it .