AP

The number of minority play-callers in the NFL has now doubled.

According to Chris Mortensen of ESPN, the Colts have struck a deal with Stanford offensive coordinator Pep Hamilton for that same position in Indianapolis. Hamilton coached Colts quarterback Andrew Luck at Stanford.

Hamilton joins Ravens offensive coordinator Jim Caldwell as the only African-American coaches who are responsible for designing offenses and calling plays during a game. With NFL owners leaning toward offensive minds, diversity in the ranks of play-callers becomes critical to establishing diversity among head coaches.

It’s a point that was first raised recently by Mike Silver of Yahoo! Sports, who joined PFT Live on Friday to address the issue.