This embodies to me the qualitative difference between a manager and a leader. Or put another way, he's a 10X manager. Highly unfortunate that I cannot find any papers (much less books) authored by him that discuss how he learned and what he uses to continue to learn leadership. Would give an eyetooth to get his perspective on how he came up with and introduced the Dealer concept, or his equivalent of essays on management like Brooks' Mythical Man-Month.