This information comes from Bill Connelly of SB Nation, who relentlessly updates his numbers every week. Connelly was inspired to undertake this project after reading the memoirs of legendary San Francisco 49ers head coach Bill Walsh, finding stats that line up with the virtues Walsh taught his staff and players. You can dive deep into his methodology by following this link.
I took Connelly’s charts, made the division between offense and defense more clear, and flipped the Panthers’ units so that they line up better against New Orleans, offense versus defense (and vice versa).