In this episode of the Lead Change Podcast, Mary K. Mulcahey, MD, sits down with Dr. Tom Collins, pediatric cardiologist, Vice Chair of Faculty and Academic Affairs at the University of Kentucky, author of The Four Stars of Leadership, and host of The Science of Leadership. Dr. Collins shares lessons from an extraordinary leadership journey that spans medicine, military service, academic leadership, and extensive study of leadership science.

Drawing on his interviews with 51 retired U.S. four-star generals and admirals, Dr. Collins explores four foundational qualities of exceptional leaders: character, competence, caring, and communication. He discusses why effective leadership is ultimately built on relationships and trust, and why the principles of leadership extend far beyond the military into medicine, academia, business, and everyday life.

Dr. Collins emphasizes that professional growth does not end with training but continues through lifelong learning, mentorship, and contribution. As an “ever learner,” he highlights that effective leadership is ultimately about helping others achieve their potential and guiding them toward meaningful growth and change.

Key Take-Home Points

• Leadership begins with relationships and trust. Dr. Collins challenges the stereotype that military leadership is simply “command and control,” emphasizing that effective leadership is built on relationships long before a critical moment requires someone to act.
• The best leaders focus on helping others succeed. Dr. Collins describes his personal purpose as helping other people achieve great things, defining his own success through the success of those around him.
• The four foundations of leadership are character, competence, caring, and communication. These principles emerged from his interviews with four-star generals and admirals and are applicable across virtually every profession and organization.
• Caring is a leadership strength, not a weakness. Caring for people builds trust and creates the foundation for people to believe in and follow their leaders.
• Professional development should be a culture, not an event. Rather than treating faculty development as a series of isolated programs, leaders can create an environment where continuous growth is an expectation for everyone—from junior faculty through senior leadership.
• You are never a “finished product.” Completing residency, fellowship, or another stage of training is not the end of development. Leaders—and professionals more broadly—should continually seek opportunities to learn, improve, and grow.
• Senior leaders have a responsibility to develop the next generation. Faculty development becomes more powerful when senior faculty actively invest in junior colleagues and view their growth as part of their own leadership responsibility.
• Leadership requires lifelong learning. Dr. Collins describes himself as an “ever learner,” arguing that leaders cannot remain effective if they stop learning while the challenges around them continue to evolve.
• Leadership and change are inseparable. As Dr. Collins puts it, people do not need leaders simply to maintain the status quo; they need leaders to help them move toward where they could be.
• Great leadership principles transcend context. Although Dr. Collins’ research focused heavily on military leaders, he argues that the fundamental principles of leadership apply equally to medicine, academia, business, and other settings.
• Purpose gives leadership direction. Understanding your “why” can help clarify what you want to contribute as a leader and keep the focus on something larger than personal achievement.