Clark is an internationally recognized specialist in leadership assessment and execution, team development, cultural change, and exceptional performance.

He has 30 years of experience with elite sporting teams in Australia and the United States by serving as psychologist at four Olympic Games, leading a national law firm, driving an international leadership and sales execution practice, and mentoring top executives. Previously, he was partner at rogenSi and vice president at TTech Consulting.

Clark has a PhD in performance psychology; is a recipient of the Australian Sports Medal; is a registered and licensed psychologist in Australia; has published more than 30 books, journals, and periodicals; and is a keynote presenter at conferences worldwide.