McNab began his career with the organization prior to the inaugural 1993-94 season, having since worked 2,111 regular season and 162 playoff games with Anaheim. Promoted to Senior Vice President of Hockey Operations in 2008, McNab oversaw all aspects of player development, had an expertise on the Collective Bargaining Agreement and its relationship to the salary cap in the NHL, contract and arbitration negotiation, player evaluation and scouting. He served as Anaheim's Assistant General Manager for 14 seasons from 1994-2008.
Prior to being named the Ducks' Assistant General Manager in December 1995, McNab served as the club's first Director of Player Personnel and was largely responsible for the team's selections in the 1994-96 NHL Entry and Supplemental Drafts. McNab has also served as General Manager of Anaheim's primary development affiliate in the American Hockey League for seven seasons (the Baltimore Bandits during in 1996-97, Cincinnati Mighty Ducks from 1997-02 and Iowa Chops in 2008-09). He also worked on the AHL's competition committee for many of those years.
McNab began his professional scouting career in 1978 with the Washington Capitals, where he spent four seasons (1978-82). McNab joined the Hartford Whalers from 1982-89, spending seven seasons as a scout and the last two as Director of Player Recruitment. He joined the New York Rangers in 1989, where he worked for four seasons before he joined the Disney-owned Ducks in 1993. His work with the Rangers helped the club to the 1994 Stanley Cup championship.
McNab was born in Vancouver, British Columbia, but grew up in San Diego is a graduate of the University of Wisconsin with a degree in Communication Arts in 1978. He was also a goaltender on one of the greatest college hockey teams of all time, the 1977 Wisconsin Badgers NCAA championship team. McNab is the only Badgers goaltender to win an NCAA title and a Stanley Cup.
Selected by the St. Louis Blues in the ninth round (151st overall) of the 1975 NHL Entry Draft, McNab has worked on numerous occasions for USA Hockey, both as an Assistant General Manager for Team USA in the World Championships on three different occasions, as well as serving as a consultant for the 1984, 1988 and 1992 Olympic Teams. He has also been a three-time member of the Hobey Baker Award selection committee, college hockey's version of the Heisman Trophy. In addition, he has been on the selection committee for the Mike Richter Award since its inception in 2014, given to the outstanding college goalie in the U.S.
A member of one of the most respected families in the NHL, McNab is the son of the late Max McNab and brother of Peter McNab. Max played on the 1950 Stanley Cup champion Detroit Red Wings and was a former general manager with the Washington Capitals and New Jersey Devils. He was also a recipient of the 1998 Lester Patrick Award given annually for "outstanding service to hockey in the United States." Peter played in 954 NHL games, scoring 363 goals and 813 points in a 14-year career. Peter is currently a broadcaster with the Colorado Avalanche.