5 NFL players who became head coaches

#3 - Mike Singletary

San Francisco 49ers head coach Mike Singletary

Mike Singletary is one of the greatest linebackers in NFL history. He was the centerpiece of the famous "Monsters of the Midway" defense for the Chicago Bears in the 1980s. He helped the Bears win a Super Bowl and was eventually inducted into the Hall of Fame.

Mike Singletary was not as successful as a head coach as he was as a linebacker. He was hired to be the head coach of the San Francisco 49ers after spending time as a linebackers coach. Across three years as head coach, Singletary finished with an 18-22 record.

#4 - Dick LeBeau

Pittsburgh Steelers defensive coordinator Dick LeBeau

Dick LeBeau played 14 seasons with the Detroit Lions and is still one of the best cornerbacks in franchise history. He is the Lions' all-time career interceptions leader with 62, which is in the top ten for most in NFL history.

Dick LeBeau, who holds a spot in the NFL Hall of Fame, was an excellent player but an even better defensive coordinator. He established himself as one of the best of all time in the position with the Pittsburgh Steelers, where he invented the zone blitzing scheme. He also spent three years as the head coach for the Cincinnati Bengals, where he had much less success, totaling only a 12-33 record.

#5 - Bart Starr

Green Bay Packers legend Bart Starr

Bart Starr is credited with being the first legendary NFL player since the merger. He helped the Green Bay Packers win both of the first two Super Bowls in NFL history and was named the MVP in both games. He won a total of five NFL championships during his Hall of Fame career.

He is one of the most successful quarterbacks in NFL history. Unfortunately, his career as a head coach was disappointing. Starr was the head coach of the Green Bay Packers for nine years and finished with an overall 52-76-3 record.