Ever pay attention to how many Heisman Trophy winners are in commercials these days? They are EVERYWHERE. Robert Griffin III is in Subway, USAA, Adidas, and Gatorade ads. Johnny Manziel is featured in Subway, Snickers, McDonald’s, and Nike commercials. Cam Newton has his hands in Gatorade, Under Armour, and a chic new fragrance known as Drakkar Essence. It’s understandable that an …