Prior to being picked by the Packers in the first round of the 1961 NFL Draft as an offensive halfback, Adderly had played collegiately for Michigan State. In his rookie season facing the fact that the Pack already had two great backs in Jim Taylor and Paul Hornung, the Green Bay coaches flipped him over to the defensive side of the ball as an emergency fill in for an injured corner Hank Gremminger and Adderly thrived as a cornerback.

Adderly accounted for 48 interceptions in his career and did some damage returning them as he averaged 21.8 yards per pick for a total of 1046 yards. Herb played in five NFL title games, and four Super Bowls! One of his biggest moments as a pro was a 60 yard pick six in Super Bowl II. The ball-hawking back also made it into five Pro Bowl games, as he was also an All-Pro in five different seasons. The Pro Football Hall of Fame enshrined Herb Adderly in 1980 to their Canton, Ohio museum.