As a sportswriter for a black publication, Nunn developed deep knowledge of football programs at
historically black colleges and universities. The Courier named a "Black College
All-America" team starting in 1950. The
NFL's
Pittsburgh Steelers noted Nunn's coverage of these players who were traditionally under-represented in the league and in
1967 Nunn accepted a part-time position on team's
scouting staff. The sideline became a full-time position two years later when
Chuck Noll became the team's coach. In the case of Stallworth, scouts from various NFL teams observed him run the
40-yard dash on a wet
track at
Alabama A&M University and were disappointed by the results. Nunn was the only scout to stay an additional day and watched Stallworth run a better time on a dry track. Nunn also had obtained the only college game film of Stallworth that existed through his relationships with HBCU coaches, and it was alleged that he withheld it from other NFL teams. ==Personal life==