Prior to joining the Ravens, Cass worked as counsel for the Dallas Cowboys, where he represented Jerry Jones in his acquisition of the club. He also worked as counsel for the Washington Redskins in 1999 where he represented the Jack Kent Cooke in that team's sale to Daniel Snyder as well as the central NFL offices. He was named Baltimore Ravens team president in April 2004, succeeding David Modell. He helped Steve Bisciotti in acquisition of the Ravens from Art Modell.[5] As president of the Ravens, he oversees all aspects of the organization.[6] He announced his retirement on February 4, 2022.[4]