The biggest determinant of your leadership effectiveness is the variable you couldn't see—until now.

In a world of nonstop complexity, even the most experienced and highly skilled leaders are hitting a wall. When pressure rises, leaders don't rise to their skills or experience.

They fall to the level of their consciousness.

Across a $366 billion leadership development industry, one variable has been missing — the unseen factor driving your leadership from the inside out. The one that shapes how you think, decide, communicate, and respond under pressure.

Gretchen Griffin and Mark Yeoell — drawing on decades of leadership science and their work with thousands of leaders — make it visible and chart a path to develop it.

The Hidden Leadership Variable introduces the HLV3x3™ Framework — a research-grounded map of how your level of consciousness shapes your leadership effectiveness. It gives you a mirror to see your leadership and a compass to shift it. Designed for immediate application — in your next conversation, decision, or moment of pressure.

Inside, you'll find:

• Relatable scenarios that illustrate how reactivity surfaces under pressure — and how to shift it before it derails your leadership
• A revealing self-assessment that exposes the unseen patterns shaping your leadership effectiveness
• Proven practices for expanding your awareness and developing the capacity for highly effective leadership
• A dynamic framework built for the complexity of leadership today — grounded in adult development theory, neuroscience, and decades of real-world practice

Competencies matter. So does training. But on their own, they aren't enough. The next frontier of leadership development is consciousness — and learning to develop it will transform how you lead.

This is a breakthrough book for leaders, executive coaches, HR partners, and organizations ready to move beyond outdated competency models and finally address the variable that matters most.

GRETCHEN GRIFFIN is a leadership development expert, executive coach, and co-creator of the HLV3x3™ framework. She works with leaders and organizations ready to confront their reactive patterns and elevate their effectiveness in the face of complexity. For more than 20 years, she has delivered transformational leadership programs across multiple business sectors and Fortune 500 companies. Her human-centered work integrates developmental psychology, systems thinking, and somatic awareness to create experiences that change how leaders think—and who they become.

MARK YEOELL is a conscious leadership strategist, coach, and co-creator of the HLV3x3™ framework. With over four decades at the intersection of consciousness and leadership performance, he brings deep expertise in increasing leader effectiveness under complexity. He is widely recognized for helping leaders see beyond their current limitations—awakening new ways of thinking that fundamentally shift how they lead. He works selectively with senior leaders ready to move beyond reactivity and lead with greater clarity, wisdom, and integrative awareness.