4. Chris Johnson, RB, NY Jets
Chris Johnson was a running back who played his first six seasons in the NFL with the Tennessee Titans. From 2008 to 2013, Johnson was one of the top running backs in the game. In 95 games for the Titans, he rushed for 7,965 yards and scored 50 touchdowns.
In 2009, Johnson had a historic season by rushing for 2,006 yards, scoring 14 touchdowns, and hauling in 50 passes. In that same year, he also broke Marshall Faulk's record for total yards from scrimmage with 2,509.
Johnson experienced somewhat of a decline in production over the course of his last couple of years with the Titans. In spite of that, he still rushed for over 1,000 yards in each of his six seasons in Tennessee.
In 2014, Johnson signed a three-year contract with the Jets. He would only start six games for them and rushed for a career-low 663 yards. It was by far his least productive season in the NFL.
Johnson battled through various nagging injuries with the Jets and was never really a good fit for the team. The Jets were still committed to utilizing Chris Ivory as their lead running back and were also starting to rely more heavily on Bilal Powell.
The Jets declined the second-year option of Johnson's contract and he was released by the team. To some degree, the signing of Johnson never really made much sense.
Chris Johnson was clearly a running back past his prime and his heavy workload in Tennessee definitely took its toll on him.