If you’re a manager, remember that one third to one half of your workforce is probably introverted, whether they appear that way or not. Think twice about how you design your organization’s office space. Don’t expect introverts to get jazzed up about open office plans or, for that matter, lunchtime birthday parties or team-building retreats. Make the most of introverts’ strengths — these are the people who can help you think deeply, strategize, solve complex problems, and spot canaries in your coal mine. Also, remember the dangers of the New Groupthink. If it’s creativity you’re after, ask your employees to solve problems alone before sharing their ideas. If you want the wisdom of the crowd, gather it electronically, or in writing, and make sure people can’t see each other’s ideas until everyone’s had a chance to contribute. Face-to-face contact is important because it builds trust, but group dynamics contain unavoidable impediments to creative thinking. Arrange for people to interact one-on-one and in small, casual groups. Don’t mistake assertiveness or eloquence for good ideas. If you have a proactive work force (and I hope you do), remember that they may perform better under an introverted leader than under an extroverted or charismatic one.

In the first study, Grant and his colleagues analyzed data from one of the five biggest pizza chains in the United States. They discovered that the weekly profits of the stores managed by extroverts were 16 percent higher than the profits of those led by introverts — but only when the employees were passive types who tended to do their job without exercising initiative. Introverted leaders had the exact opposite results. When they worked with employees who actively tried to improve work procedures, their stores outperformed those led by extroverts by more than 14 percent.

Introverts tend to assume leadership positions within groups when they really have something to contribute….they listen carefully to the ideas of the people they lead. All of this gives them a big advantage over leaders who rise to the top simply because they're comfortable talking a lot or being in control.

.. 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.

While extroverts tend to attain leadership in public domains, introverts tend to attain leadership in theoretical and aesthetic fields. Outstanding introverted leaders, such as Charles Darwin, Marie Curie, Patrick White and Arthur Boyd, who have created either new fields of thought or rearranged existing knowledge, have spent long periods of their lives in solitude. Hence leadership does not only apply in social situations, but also occurs in more solitary situations such as developing new techniques in the arts, creating new philosophies, writing profound books and making scientific breakthroughs.

Introverts do better alone with competition, extraverts do better in large group without competition

We're told that to be great is to be bold, to be happy is to be sociable. We see ourselves as a nation of extroverts — which means that we've lost sight of who we really are. Depending on which study you consult, one-third to one half of Americans are introverts — in other words one out of every two or three people you know.

Introverts feel “just right” with less stimulation, as when they sip wine with a close friend, solve a crossword puzzle, or read a book. Extroverts enjoy the extra bang that comes from activities like meeting new people, skiing slippery slopes, and cranking up the stereo.

Good-to-great management teams consist of people who debate vigorously in search of the best answers, yet who unify behind decisions, regardless of parochial interests.

ability to build teams.

The Google team at Project Aristotle concluded that there were five main traits of a successful team. Psychological safety was the most important, and their research suggested that it underpinned the other four[xxvi]. The five traits were as follows: (1) Psychological safety: team members feel safe to take risks and be vulnerable in front of each other. (2) Dependability: team members get things done on time, and meet Google’s high bar for excellence. (3) Structure and clarity: team members have clear roles, plans, and goals. (4) Meaning: work is personally important to team members. (5) Impact: team members think their work matters and creates change.

In other words, introverts are capable of acting like extroverts for the sake of work they consider important, people they love, or anything they value highly.

Some of the world’s most talented people are introverts. Without them we wouldn’t have the Apple computer, the theory of relativity or Van Gogh’s sunflowers.

Hardly anybody ever writes anything nice about introverts. Extroverts rule. This is rather odd when you realise that about nineteen writers out of twenty are introverts. We are been taught to be ashamed of not being 'outgoing'. But a writer's job is ingoing.