When New England running back Jonas Gray took the field vs. the Indianapolis Colts five years ago, no one could have predicted the incredible outburst of scoring that would land him national attention, and even a magazine cover. Nor could anyone have predicted how quickly that success would disappear, through a series of mishaps. ESPN senior writer Liz Merrill tells Mina Kimes the story of an underdog, his big shot, and how players might always be one step away from glory - or obscurity - in the NFL.