[4] A reserve for much of his early career behind hall of famer Paul Hornung,[6] he saw his most action for the Packers in 1966,[7][8] and scored two touchdowns in the first Super Bowl.

[9][10][11] In January 1970, after Lombardi's departure from the team, Pitts, Lee Roy Caffey, and Bob Hyland were traded to the Chicago Bears for the second overall pick in the 1970 NFL draft.

[12][13] At age 32, he was cut by the Bears and played for the Rams and Saints in 1970,[14][15][16] then returned to Green Bay for a final season in 1971 with first-year head coach Dan Devine.

[17] Pitts was a member of all five NFL championship teams under head coach Vince Lombardi, including wins in the first two Super Bowls.

After Biles was fired in 1983, Pitts spent a season in Canada with the Hamilton Tiger-Cats in 1984 with head coach Al Bruno.