We have all heard it before; it’s lonely at the top, and I don’t mean Randy Newman’s 1972 hit song by the same name. I’m of course referring to that painfully-isolating feeling that many business leaders, especially CEOs of startup companies, inevitably experience during times of difficulty. Sure, friends and family are usually available to lend an ear, but often they tend to be more protective than objective. Even more likely, many entrepreneurs don’t feel comfortable sharing everything with their personal inner circle. So who can CEOs talk to and why is it worth finding a sounding board?