Research is showing that introverted leaders are better at delivering results than extroverted leaders because they listen better, think longer, investigate more diverse sources of information, and let talented workers do their work without interference. Susan Cain outlines some of the traits of introverted leaders in the interview The Power of Introverts: A Manifesto for Quiet Brilliance with Gareth Cook at Scientific American and in her new book QUIET: The Power of Introverts in a World That Can’t Stop Talking.