Info about past greats was invaluable.

I actually had 3 mentors; all had been involved with great players. Their insights into what made those great players tick and how they( Ken Venturi, Patty Sheehan were 2 of the players) acquired their skills was incredibly insightful. The knowledge I gained was very helpful later when working with exceptionally talented players. I consider myself very lucky to have had access to that knowledge.