Greg Harden, a long-time University of Michigan sports counselor renowned for his work with athletes such as Tom Brady, Michael Phelps, and Desmond Howard, has passed away at 75 due to complications from surgery. Harden was hired in 1986 and was often referred to as Michigan's 'secret weapon' for his mental coaching that significantly contributed to the athletes' success. He retired from his full-time role in 2019 but continued to work with the university and the Toronto Maple Leafs. Testimonials from athletes and colleagues highlight his profound impact on their lives, emphasizing his role as a mentor and confidant. Harden also authored a book on mental fitness and was featured in a '60 Minutes' episode in 2014. He is survived by his wife, three children, and a sister.