Nowadays, NFL players are all over the business landscape with their own companies and brands. While broadcasting and coaching are the paths we usually think of for former players, more and more are becoming entrepreneurs.
Instead of spending the money they earn on expensive cars and over-the-top houses, they invest it to create a revenue stream that can continue long after football. The Dallas Cowboys certainly are well represented in that population. While Troy Aikman and Tony Romo are both mostly known today for their work in the booth, both also have outside business interests. Aikman owned a stake in the car dealership named after him that he later sold, and holds a lot of stock in Wingstop.