Singletary is the latest hall-of-fame player to become a head coach in the NFL, and he has some history on his side.

Former NFL hall-of-famers-turned-coaches have had their string run out when they put on a headset and carry a whistle.

Mike Singletary will have to avoid being on this list if he's looking to have longevity and coaching success with the 49ers.

Here's some of the people Singletary must prevent following:

BART STARR

After a brilliant career that included two Super Bowl victories and All-Pro selections, Starr joined the Packers coaching staff in 1972 and then became head coach in 1975.

Starr compiled a disappointing record of 52-76-2 and was dismissed in favor of his former teammate, Forrest Gregg, in 1984.

Starr's Packer teams won no more than eight games during his nine-year head-coaching career.

FORREST GREGG
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Article Source: BleacherReport.com

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