Nobody is safe. Everybody has to work hard. Every position is up for grabs.
Since then, the Lions have developed a franchise quarterback, a team identity and key players on each side of the ball. They've broken their streak of consecutive losing seasons, made the playoffs and set some franchise records in the process.
The mantra of working hard and earning your spot hasn't been lost on the team, but there is definitely a depth chart in 2012, and with it, some roster battles.
There are a bunch of positions that aren't up for discussion, and most of the starters are already set for 2012. But as you go down the depth chart, several positions are up for grabs—especially the backup roles.
The Lions have some battles already brewing on the roster. Others will pop up as the Lions progress through the offseason and continue adding players.
But whether the battle is already set or likely to begin after the draft (or free agency), here are the roster spots most likely to be contested in training camp this year.