Gilmer does get a lot of their yards from quick outs, slants, tunnel screens, screens in general, but this year is about half and half yardage wise - half the yards on quick pass and runs (under 15 yd throws), and half on deep balls. The deep ball threat was completely absent last season. Not so this season. Carthage took away the deep ball away from Gilmer, making them actually drive the ball. Smart coaching by the Carthage staff. Turnovers were forced, giving Carthage a short field several times in the first half.
I honestly didn't see this game as an upset. I saw it more as a pick 'em game. Carthage was the better team this season.