Bills Bubble Watch: Stefan Charles

(Continuing a month-long series analyzing Buffalo Bills players who are on the roster bubble and where they potentially fit in 2014.)

Name: Stefan Charles

Position: Defensive tackle

Age: 26

2013 stats: 8 games (no starts), 12 tackles, one sack, one forced fumble

Chance of making 53-man roster: 70 percent

Why he should make it: Charles stands a good chance of making the roster. At 6-foot-5, 323 pounds he has ideal size for his position. He showed some flashes of play-making ability last season, recording a sack and forced fumble on separate plays in the regular-season finale. He's a developmental prospect who should help fill in the back end of the roster.

Why he shouldn't make it: The Bills will go from starting Kyle Williams, Marcell Dareus, and Alan Branch along a three-man front to using just two of those big men in a four-man front. That will reduce Branch's playing time and push Charles a notch down on the depth chart. If the Bills only carry four defensive tackles then Charles will have to battle Corbin Bryant and two undrafted rookies for that spot. Versatility from defensive end Jarius Wynn to slide inside to tackle also factors into that competition.

Closest competition: Bryant, Wynn, undrafted rookie