 Fortune magazine's 40th Anniversary issue (5/15/95), in examining the major contributions to management thinking over the last two decades along with Peter Drucker's "The Practice of Management" and Michael Hammer and James Champy's "Reengineering The Corporation", recognized Erhard's ideas about methods for empowering people as one of the major innovations in management thinking of the last two decades.Erhard and his programs have been cited as having a significant cultural impact on America in the 1970s.Erhard's teachings have influenced the field of professional coaching.