A new diversity report has given the NFL its lowest overall score in racial and gender hiring in 15 years.

The NFL received a B for racial hiring practices and a C-plus for gender hiring practices. This gave the NFL a combined B-minus grade for its overall score of 79.3%, a notable decrease from its score of 81.6% last year.

“Almost all of this is attributed to drop in head coach of color and general managers of color, because we put additional weight on those positions,” Richard Lapchick told The Associated Press.