(Continuing a month-long series analyzing Buffalo Bills players who are on the roster bubble and where they potentially fit in 2014.)
Name: Frank Summers
2013 stats: 15 games (nine starts), 12 rushes, 46 yards, one touchdown, seven catches, 79 yards, one touchdown
Chance of making 53-man roster: 70 percent
Why he should make it: Summers enjoyed a career resurgence last season in Buffalo. He saw his first regular-season game action since 2009 and made the most of it, becoming the type of bruising fullback that is seen less and less around the NFL. He contributed on both offense and special teams and remains the Bills' best option as a lead blocker in goal line situations. Roster spots for skill-position players will be hard to come by, but Summers has built himself a fairly comfortable niche on the team.
Why he shouldn't make it: The commentary here is similar to Lee Smith. Summers' main role comes in the running game. He played in only 19 percent of offensive snaps last season when the Bills leaned heavily on Fred Jackson and C.J. Spiller. With EJ Manuel now in his second season and the Bills wanting to push the tempo on offense, does Summers' style of play fit the Bills' style of offense? The Bills may be hard pressed to keep two fullbacks as they did last season. Evan Rodriguez offers more athleticism and could help the Bills' offense in more situations than Summers.