One of the great motivators in all of humanity is and has always been the fear of failure. It applies to some people—perhaps certain personality types—more than others, but generally speaking, it is true. Extra effort is frequently applied simply in order to alleviate the fear that comes from the potential of failing to achieve something aimed for.
That is what drives first-year Pittsburgh Steelers defensive end Johnny Maxey, a small-school product who despite still being regarded as a first-year player did actually get to experience the 53-man roster, as well as play in and contribute to a very meaningful game.