I've been a student of leadership and organizational behavior for a long time. In my own recent research, I found that a CEO who is open and approachable is much more likely to get learn about early warning signals, before they become bad news. This has been validated by research studies. Leaders who are agreeable and access the extraverted part of their personality are easier to approach. They are more likely to listen without judgment and not bite off the head of those who bring unpleasant news. They create a culture of openness that trickles down throughout the organization. In cultures of openness, individuals aren't afraid of speaking up.