Disappointment is a natural part of life, and for the NFL it is no different. Players will underperform just as often as they over-perform, and that certainly is the case for the 2011 season.
For every Cam Newton or Fred Jackson, players who unexpectedly dominate, there are players who come into new seasons with high expectations and fail to meet those lofty standards.
What is even worse is when a player who we've seen before perform excellently suddenly can't even play average. And for the 2011 NFL season, there are quite a few of those players who are torching their own legacies.
Who are some of the NFL's biggest names who have taken the biggest steps backwards? Let's take a look.