By Zach Koons He released a memo to all 32 teams on Saturday. NFL commissioner Roger Goodell sent a memo to all 32 clubs Saturday morning, calling the league’s lack of progress toward increasing diversity among its coaching ranks “unacceptable” and vowing to “reevaluate” the league’s current diversity, equity and inclusion policies. “Racism and any form of discrimination is contrary to the NFL’s values. We have made significant efforts to promote diversity and adopted numerous policies and programs which have produced positive change in many areas, however we must acknowledge that particularly…