The Miami Dolphins, on paper, have their most talented collection of players since head coach Joe Philbin took over four seasons ago. This means Miami’s front office and coaching staff will have plenty of tough decisions to make this summer.

This week I will take a look at some of the interesting players on the roster bubble. First up is a former second-round draft pick of the San Francisco 49ers who is trying to make it in Miami.

Bubble player: LaMichael James

Position: Running back

Experience: Fourth season

Analysis: James is an interesting project for Miami. He was a hot name coming out of Oregon in 2012 and the 49ers took him with the No. 61 overall pick. But the smaller James never fit San Francisco's power running game and he was released in his third season. The Dolphins picked him up, but James played in only two games last season and rushed for 9 yards on three carries. This is a huge year for James to prove himself. He's had a full offseason with the Dolphins to learn the offense, and the backup tailback position is wide open behind starter and 1,000-yard rusher Lamar Miller. James is a better fit for Miami’s spread scheme under offensive coordinator Bill Lazor, and the running back has made some nice plays this spring. But James will compete for reps with a crowded group of running backs that includes Miller, rookie Jay Ajayi, Damien Williams and Mike Gillislee. Miami may keep only three tailbacks on its active roster and it could come down to Williams or James for the final spot.

Chances of making 53-man roster: 50 percent