In every NFL season, many players who start out as backups turn into starters, so it is inevitable that will be sure to happen again in 2013.
Of course, many of these backups are rookies and it generally takes time for a rookie to adjust to the NFL. While he may not be ready to start immediately, that could easily change halfway through a season.
Some of these backups-turned-starters will be veterans, a player who took a little longer to develop or perhaps an underperforming stater.
Regardless of the situation or reason, every NFL team will have new starters throughout next season. These are just a few whose teams could benefit from such a switch.