The blog post

In this episode of Lean Blog Audio, Mark Graban reads and reflects on his recent article, From Know-It-All to Learn-It-All: Leadership Lessons from Mistakes.

Drawing from themes in his Shingo Award–winning book The Mistakes That Make Us and interviews with leaders Phillip Cantrell and Damon Lembi on My Favorite Mistake, Mark explores the transformative shift from being a leader who must always be right to one who is willing to learn.

You’ll hear stories of humility in action—from Cantrell’s reinvention of Benchmark Realty after the housing collapse to Lembi’s recovery from near-bankruptcy during the dot-com bust. Both leaders learned that progress doesn’t come from certainty, but from curiosity, reflection, and the courage to say, “I might be wrong.”

Mark also connects these lessons to healthcare leader Dr. John Toussaint’s evolution from “all-knowing” executive to facilitator and coach—showing how psychological safety, experimentation, and evidence-based learning drive true continuous improvement.

If you’ve ever felt pressure to have all the answers, this episode is a reminder that the best leaders aren’t know-it-alls—they’re learn-it-alls.

Listen, reflect, and consider: how might humility strengthen your own leadership practice?