The San Diego Chargers finished 2012 second in the AFC West with a 7-9 record and three games short of a playoff spot.
The reasons for the shortcoming are varied—draft, free agency, coaching, etc.—but ultimately the blame always lies on the shoulders of the players.
If San Diego expects to improve on the 7-9 record, some key players need improve on their 2012 season. Whatever the reason, these players either had down years compared to seasons past or simply need to take the next step in terms of development.
The list is arranged from players who did not live up to expectations to players who need to play well for San Diego to have a winning season in 2013.