In addition to serving as Coordinator for the Sport Studies Leisure Academic Unit, Dr. Irwin is the Director of the Bureau of Sport and Leisure Commerce at the University of Memphis. As the Bureau's director, Dr. Irwin has been responsible for managing commissioned projects conducted on behalf of local organizations such as the Memphis Interscholastic Athletic Association, Memphis Grizzlies, FedEx St. Jude Golf Classic, FedEx Sports & Event Marketing, and Memphis AAA Baseball as well as national sponsors such as the National Collegiate Athletic Association and Women's Basketball Association. The Bureau currently serves as the Business Office for the Sport Marketing Association (SMA).

Dr. Irwin has provided marketing consultation to a variety of sport properties including the San Antonio Sports Foundation, San Jose Sports Authority, Houston 2012 Olympic Foundation, Major League Baseball, the Ladies Professional Golf Association, Orlando Magic, Cleveland Cavs, Philadelphia 76ers, Phoenix Coyotes, Pittsburgh Pirates, Streetball USA and Indiana Pacers. In addition to his academic responsibilities Dr. Irwin was the Director of Marketing and Sales for the AXA/Equitable Liberty Bowl for two years while also serving as a member of the Memphis/Shelby County Sport Authority Board of Advisors as well as the North American Society of Sport Management Executive Council.