We talk a lot about diversity, and how important it is for companies. In addition to mirroring their customer base, companies want to make sure they have diversity of thought at the leadership level. Companies like Uber (and indirectly perhaps the entire car-share industry) have suffered because they were trapped in a singular “bro leadership” mindset that led to some disastrous results. If everyone thinks the same way and no one pushes back, the CEO echo chamber becomes a very dangerous place. There was a study published in the Harvard Business Review that examined the performance of companies...