https://upload.wikimedia.org/wikiped...954_Bowman.jpg
https://en.wikipedia.org/wiki/Dave_Hanner
Coaching career
Following his playing career, Hanner spent sixteen seasons as an assistant coach for the Packers. From 1965 through 1970, he was the defensive line coach. When Dan Devine took over as head coach in 1971, he was promoted to the defensive coordinator, a position he served in until 1974. Bart Starr became the team's head coach in 1975 and Hanner remained as the assistant head coach and defensive coordinator. He was released after the 1979 season (and then worked for the rival Chicago Bears), but returned as the team's quality control assistant in 1982. He transferred into a scout role until he retired in 1996.
Hanner was inducted into both the Green Bay Packers Hall of Fame and the Arkansas Sports Hall of Fame.
First, he may have become a Bears' plant after 1979.
Second, that is a whale of a career but he seems to be moving into a downward trajectory after being let go as DC in '79. However a defensive minded guy is someone I could see (as a coach or as a scout) trying to get a player for the defense (Johnson). If he recommended Campbell, who knows what the motivation was.