After 70 years in the field as a administrator, professor D, coach,author, and professional leader, Dr. Zeigler feels that competitive sport has become overly commercialized. has dubious supporting...ver maisAfter 70 years in the field as a administrator, professor D, coach,author, and professional leader, Dr. Zeigler feels that competitive sport has become overly commercialized. has dubious supporting theory, and is not serving humankind in the best possible way.,ver menos