3.) Bam Morris
The next member of our list was also a former Pittsburgh Steeler who never took off. Bam Morris holds the distinction of not only being the worst running back free agent in Chiefs history, but also in being the single worst criminal the team ever employed.
Morris entered the league as a 3rd round pick by the Steelers in 1994. He played two years there, two years in Baltimore, and was signed by Chicago to start the 1998 season. After just two games the Bears cut him and the Chiefs brought him into Kansas City. In 1+ seasons with the Chiefs he appeared in 22 games and rushed for 895 yards and 11 touchdowns. But, he also a 3.5 yards per carry average and failed to finish 1998.
Morris was an equally bad criminal, though. After numerous drug trafficking related arrests he was sentenced to 10 years for parole violation in Texas in 2001. He was released in 2004 and actually played semi-pro football again in 2009, in the arena league.
The Bam Morris tenure in Kansas City, though, was a short lived, colossal failure.