Two weeks ago we spoke with Dave Heenan, a successful leader, executive, educator, and author, about his book "Leaving On Top: Graceful Exits For Leaders." We asked him back to talk about another book he wrote, "Hidden Heroes: Finding Success in the Shadows." In the book, Heenan writes about the way society tends to focus on celebrities. But when examining how the real work gets accomplished, Heenan found one group of professionals - the "exceptional subordinates" - who he calls "hidden heroes." Heenan joins us again today to discuss these selfless individuals who find success in the shadows.