Gary MackGary Mack is a leading sports psychology consultant and counselor who has worked with athletes in the NBA, NFL, NHL, WNBA, and Major League Baseball. He is president of two consulting firms, Sports Assist and Planning Solutions; the director o sports psychology for Griffey International; and team counselor for the Phoenix Suns and Phoenix Mercury. David Casstevens is a senior writer for the Fort Worth Star-Telegram and author of the Charles Barkley biography, Somebody's Gotta Be Me. Read More Read Less
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