Nick Perry argues that yes-men are more dangerous to a company than thieves or rivals. They hide a leader's blind spots by agreeing with everything, preventing better alternatives from surfacing. Leaders need to actively seek dissenting views before making decisions.
The most dangerous person in your company is not the one who steals from you or the one who envies you. It's someone who does something way worse. See, as a leader, you have to make difficult decisions every day. Before making these decisions, you need to listen to different opinions in order to reach the best conclusions. Which is why the most dangerous person in your company is the one who agrees with everything that you say. Because every opinion has a blind spot. So if you can't see the blind spot in your opinions, you will never reach the best conclusion. And if you never reach the best conclusion, you will never make the best decisions for your company.
