Texas had the ball and had a chance to go up 21-3 I believe it was still first quarter. If they don't turn the ball over and take a 21-3 lead I think the whole game changes and now we're watching Texas cover the spread fairly easily. That turnover and resulting score for A&M really pumped them up and obviously provided them with what they needed to make it a ballgame.
I know, "if ifs were fifths we'd all be drunk", but just some insite to what I think wasn't far from becoming a blowout.