I'm of a mixed mind on this subject. At the very top, I think you want your company's leaders to convey surpreme confidence, almost an all-knowing air. Not with their direct reports, but with the rank and file. There's a classic scene from the WWII submarine movie U-571. After the new skipper shows weakness to the crew, the CPO calls him aside to set him straight: "You're the skipper now, and the skipper always knows what to do, whether he does or not." Companies aren't Naval ships, but CEOs shouldn't show their sweat to employees. The project team dynamic is very different, however. We all sweat together.