Any football coach will tell that their actually three facets of the game that a team needs to excel in to be successful; not only does a team need to be efficient on offense and defense, but they also need to get a decent showing in the special teams department.
Two seasons ago, the Detroit Lions thought they were set for a while with a return man, as rookie Jamal Agnew put up good enough stats (league best 447 yards, 15.4 yards per return, and two touchdowns) to earn an All-Pro nod in the punt return game.