Many leaders rely on confidence, the ability to make timely decisions, and hold themselves and others accountable. But some of these leaders have not yet developed resonance, the ability to read the room, understand and appreciate the thoughts and emotions of others.

One of my favorite quotes from Thomas Edison is, "If we all did the things we are capable of doing we would astound ourselves." I believe leadership is a journey of learning and growing.

We become overly reliant on the strengths that got us where we are today. We also become isolated as we move up in the organization. Unless we have the benefit of assessment, and unless we invite feedback on our leadership, we continue to lean on strengths that can actually work against us, and fail to expand our leadership style in a way that makes us more effective.

We must reflect a holistic view of the leader, in three dimensions, character, substance and style. Character consists of the qualities that win trust whereas substance consists of the qualities that earn us credibility; style is the dimension of execution - getting others to get things done.

The core philosophy we share with leaders is that everyone can develop the qualities in themselves. We all have strengths, but where we have gaps, we can make small changes in our behavior that make a big difference in how others see us as leaders.

I have worked with leaders for 17 years. But I'm also a leader myself, and I can honestly say I feel deeply the privilege and responsibility that come with being a CEO. It is incumbent upon us to become all we can be, not only for ourselves, but for our companies.

For years when we went into companies to discuss how we could help their leaders be most effective, we heard people say, "Our leaders need to develop executive presence."