The 2013 draft class was expected to change the Miami Dolphins from a mediocre team to a playoff contender in both the long and short term.

Less than four years later, the entire class is nearly extinct in Miami.

Former starting outside linebacker Jelani Jenkins signed a free-agent contract with the Oakland Raiders on Monday. This leaves just one player -- embattled defensive end Dion Jordan -- as the lone draft pick left on the Dolphins' roster. Even Jordan’s status in Miami is on very thin ice, because he is a long shot to make its 53-man roster in September.

How did Miami's draft class fall apart so quickly? Let’s take a look at each player and what transpired:

Dion Jordan hasn't played since the 2014 season, but remains on the Dolphins' roster -- for now. AP Photo/Alan Diaz

First-round pick: DE Jordan

What happened: The Dolphins thought it had a future star in Jordan when they traded up to the No. 3 overall pick to select him. But Jordan’s career never got off the ground due to self-inflicted wounds and a few injuries. A shoulder injury held Jordan back for much of his rookie season. After that, he faced three league suspensions and hasn’t played football since the 2014 season. The only reason Jordan is still on the roster is due to his draft status and once-lofty potential. But the Dolphins have essentially moved on without Jordan and may not keep him around much longer.

Second-round pick: CB Jamar Taylor

What happened: Taylor arrived in Miami with some health issues and also couldn’t seem to avoid the injury bug once he got to the Dolphins. The fit in Miami just didn’t seem right for Taylor. The coaching staff didn’t believe he played to his potential and Taylor was better suited for a different defensive scheme. He eventually was traded to the Cleveland Browns and had a solid first season with career highs in tackles (53), interceptions (three) and starts (14).

Third-round pick: OL Dallas Thomas

What happened: Where do we begin with Thomas? The Dolphins gave him chance after chance to develop into a quality starter and it never happened. He flopped at both guard and offensive tackle due to poor technique and footwork. Thomas was released in 2016 and has been out of the league since.

Third-round pick: CB Will Davis

What happened: Davis was a good practice player but was never able to show it consistently enough in games. His smallish frame led to too many injuries. Davis was eventually traded to the Baltimore Ravens in 2015 but suffered injuries there as well.

Fourth-round pick: LB Jenkins

What happened: Jenkins put together one nice season in 2014 when he led the Dolphins with 110 tackles to go with 3.5 sacks. But that turned out to be the only significant flash for Jenkins in four seasons with the Dolphins. The next two years were filled with mostly injuries and inconsistency. At 25, he’s still a young player. Maybe Jenkins will establish more consistency in Oakland.

Fourth-round pick: TE Dion Sims

What happened: Sims developed into a solid No. 2 tight end for Miami who finally will get a chance to be a starter for the Chicago Bears this upcoming season. Sims is a borderline elite, in-line blocker and was better at catching the football than his numbers would indicate. However, Miami went in another direction this offseason by trading for Julius Thomas and signing veteran Anthony Fasano in free agency.

Fifth-round pick: RB Mike Gillislee

What happened: Gillislee didn’t get many opportunities in Miami. He had just 21 rushing yards with the Dolphins before being released. But Gillislee turned out to be a quality backup running back for the rival Buffalo Bills and has rushed for 844 yards and 11 touchdowns the past two seasons backing up LeSean McCoy.

Fifth-round pick: K Caleb Sturgis

What happened: Sturgis beat out veteran Dan Carpenter in his rookie season. But despite a strong leg, Sturgis just couldn’t seem to find his accuracy or consistency in two years in Miami and was eventually released. Sturgis is currently the kicker for the Philadelphia Eagles and has improved. He accounted for a career-high 135 points last season.

Seventh-round pick: DB Don Jones

What happened: Jones was a strong special-teamer for Miami and held that job for two seasons. He’s since bounced around the league and has played for five teams in four seasons.