Book excerpt: Look around your office. Turn on the TV. Incompetent leadership is everywhere, and there's no denying that most of these leaders are men. In this timely and provocative book, Tomas Chamorro-Premuzic asks two powerful questions: Why is it so easy for incompetent men to become leaders? And why is it so hard for competent people--especially competent women--to advance? Marshaling decades of rigorous research, Chamorro-Premuzic points out that although men make up a majority of leaders, they underperform when compared with female leaders. In fact, most organizations equate leadership potential with a handful of destructive personality traits, like overconfidence and narcissism. In other words, these traits may help someone get selected for a leadership role, but they backfire once the person has the job. When competent women--and men who don't fit the stereotype--are unfairly overlooked, we all suffer the consequences. The result is a deeply flawed system that rewards arrogance rather than humility, and loudness rather than wisdom. There is a better way. With clarity and verve, Chamorro-Premuzic shows us what it really takes to lead and how new systems and processes can help us put the right people in charge.