It makes sense that introverts are uniquely good at leading intiative-takers. Because of their inclination to listen to others and lack of interest in dominating social situations, introverts are more likely to hear and implement suggestions. Having benefited from the talents of their followers, they are then likely to motivate them to be even more proactive. Introverted leaders create a virtious circle of proactivity.

Quiet: The Power of Introverts in a World That Can't Stop Talking (ed. Penguin UK, 2012) - ISBN: 9780141970172