Bill Polian, the former Colts and Bills general manager, said a “Moneyball” approach couldn’t work in football. But there’s a bigger problem with Moneyball. “As a practical tool, Moneyball does not work in the NFL because there are very few undervalued players and no middle class because of our salary cap,” Polian said. The Bills plan to import Moneyball concepts to the NFL. because there are very few undervalued players and no middle class because of our salary cap,” Polian said. When you build teams to a championship or near-championship level as Polian did with the Buffalo Bills , Carolina Panthers and Indianapolis Colts , you've got a history that will have people very interested in what you have to say. Likewise, no amount of film review can account for the question of whether a player properly or improperly fulfilled his actual assignment on a given play, and whether the play was designed in a way that gave the player a realistic task.