Using over 1.5 million assessments from leaders worldwide, renowned psychometrician Dr. Joseph Folkman and leadership legend Dr. Jack Zenger are here to settle the debates and let the data speak for itself. Each week they analyze different leadership traits, trends, and what it really takes to get to the 90th percentile. These short episodes feature compelling stories, research, and actions that leaders can take to improve.
The 90th Percentile: An Unconventional Leadership Podcast
Published: September, 2025
What if great leadership could go viral? In this episode of The 90th Percentile Podcast, Dr. Jack Zenger joins BreAnne Okoren to explore how positive leadership behaviors—like openness, respect, and accountability—spread through organizations and transform cultures. Drawing on decades of research, Jack reveals why developing leaders at scale creates psychological safety, sparks innovation, and shifts entire organizations. Discover the three actions that make leadership development contagious—and how HR and OD professionals can start a ripple effect of great leadership today.
Key Points
Leadership Behaviors Are ContagiousPositive leadership behaviors—like openness, respect, and accountability—can spread rapidly across teams and functions, reshaping the culture just as viral trends do online.
Psychological Safety Fuels InnovationWhen leaders consistently model curiosity, support, and transparency, they create psychologically safe environments where employees feel empowered to speak up, take risks, and innovate.
Widespread Development Drives Culture ChangeDeveloping leaders at all levels—not just high potentials or executives—creates powerful ripple effects that accelerate culture change across an entire organization.
Behavior Change Requires Proven MethodsLasting growth comes from structured, research-based approaches—such as 360-degree feedback, coaching, and action learning projects—rather than one-off workshops or motivational events.
Sustained Effort Creates Lasting ImpactMulti-year leadership initiatives send a clear message that development is an expectation, not a perk—raising the baseline of leadership effectiveness and embedding positive behaviors into the culture.
Zenger Folkman hosts an exclusive live webinar every month, where you can meet Jack Zenger and Joe Folkman and join in a conversation about their latest research in leadership development. Find out more information and register here.
Podcast: Play in new window | Download (Duration: 17:34 — 20.1MB)
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