Lovie Smith: NFL is again being criticised about its lack of diversity
Most NFL players are Black. So why aren't there more Black head coaches?
The Fixture: A Q&A with Bengals coach Marvin Lewis
How the NFL disadvantages Black coaches
Marvin Lewis: Minority coaches need opportunities; Rooney Rule failing
Ozzie Newsome, Marvin Lewis helped jump-start Jim Schwartz's career
The NFL has only 3 Black head coaches. That needs to change. - The Washington Post
Black NFL coaches aren't getting head coach jobs. Here are reasons why
Ozzie Newsome, Marvin Lewis helped jump-start Jim Schwartz's career