Mark by Mark Graban

Mark Graban: Lean Leadership & More Feb 15, 2026

The Power of Small Ideas: How Tiny Kaizen Changes Saved $3 Million in Healthcare

Most people think improvement requires massive change. But what if the biggest results come from the smallest ideas?…

Mark Graban: Lean Leadership & More Feb 12, 2026

“I Made a Marine Cry”: A Leadership Mistake About Authority and Learning

“I was trying to be who I thought a Marine officer was supposed to be.” Former U.S. Marine officer Olaolu Ogunyemi…

Mark Graban: Lean Leadership & More Feb 11, 2026

Why Commander's Intent Builds Better Leaders Than Constant Control | Olaolu Ogunyemi

If a leader has to stand over people to make things work, the system breaks the moment they leave. Former U.S. Marine…

Mark Graban: Lean Leadership & More Feb 10, 2026

My Biggest Leadership Mistake: Trying to Be Someone I Wasn’t | Olaolu Ogunyemi

Trying to lead the way you think you’re supposed to can be your biggest mistake. Former U.S. Marine officer Olaolu…

Mark Graban: Lean Leadership & More Feb 9, 2026

Stop Yelling: Why One-Size-Fits-All Leadership Fails | Olaolu Ogunyemi

Yelling doesn’t make you a better leader—it just makes leadership less effective. Former U.S. Marine officer Olaolu…

Mark Graban: Lean Leadership & More Feb 9, 2026

“I Made a Marine Cry”: A Leadership Mistake About Authority, Trust, and Self-Discipline

A Marine officer reflects on a leadership mistake that revealed why authority alone never builds self-discipline. “I was…

Mark Graban: Lean Leadership & More Feb 9, 2026

I Made a Marine Cry — A Leadership Mistake That Changed How I Lead | Olaolu Ogunyemi

What happens when a leader realizes their approach caused real harm? In this episode of My Favorite Mistake, U.S. Marine…

Mark Graban: Lean Leadership & More Feb 7, 2026

Startup Mistakes That Cost You Later: Jason Sherman on Co-Founders, Smart Money, and MVP Learning

What early startup decisions quietly create the biggest problems later on? In this episode of My Favorite Mistake,…