Video: Halftime Alum John Leffin’s Story of Struggle and Ultimate Impact


Halftime Alum, John Leffin, was a Partner for global consulting firm, Accenture. Then, right at the peak of his success, he hit the season of halftime and began wrestling with the question, “Is this all there is?” in his desire to make a greater impact on the world.

We celebrate the work God has done in John’s life, and the lives of so many as a result of John’s second half journey. John’s work with Mission of Hope Haiti is making a powerful impact on some of the nation’s most pressing issues including disaster relief, infrastructure and strategic planning, education, clean water, and poverty.

John is just one of many halftime alumni who have engaged in a purposeful process to move from success to significance. May his story of struggle, transformation, and impact inspire and encourage you. If you resonate with his journey and there’s any way we can help you in your second half, please don’t hesitate to reach out.

John Leffin’s Halftime Struggle

“I ran hard for years…after twelve years I reached the pinnacle of my career at a young age, but I reached a point where I woke up one day and wondered “Is this all there is?” I had lost the lustre…and I think God was working in my heart to say “I have other plans””


John Leffin’s Second Half Purpose

“God used the 20+ years in consulting to prepare me for that moment to go out into the second half. And the impact…I go from changing large corporations to changing lives, and changing the nation of Haiti.” John says.


We feel blessed to be a part of this ripple affect of halftime alum who come from a place of “smoldering discontent” to purpose, joy, and impact.

If you resonate with John’s struggle and his desire for impact, make sure to check out the Fellows Program. Click here. 

To view more alumni video stories, click here.


Tim Dammon

Director of Alumni Engagement & Chief Philanthropy Officer


Tim Dammon serves as Chief Philanthropy Officer and Director of Alumni Engagement at the Halftime Institute. He provides coaching and encouragement to Halftime clients whose calling is around using their financial resources to make a measurable, lasting impact and work to build the investment community of committed and generous partners who recognize and fund Halftime’s high impact work around the world. As Director of Alumni Engagement, he works to deepen relationships with graduates of Halftime programs to insure their sustainable and effective engagement in their second half calling.

Tim has a a Master’s Degree in Engineering Psychology and Human Factors from Houston’s Rice University. His career has focused primarily on technology, which included stints at Compaq Computers, Gateway Computers, ideaEDGE Ventures, Entropia Distributed Computing, and finally the Iomega Corporation where he was Global GM for a $5-700mm consumer product line. Since Tim left the technology sector, he has served in various leadership roles in the non-profit sector. Tim was the Chief Relationship Officer for The Seed Company, an affiliate of Wycliffe Bible Translators focused on building translation teams with mother tongue translators around the world and developing financial investors in the United States to support translation projects. Most recently before joining the Halftime Institute team, Tim served as President/CEO of Angel Flight South Central, a helping ministry comprised of more than 1,200 volunteer pilots and aircraft owners participating in entrepreneurial philanthropy by using their skills and resources to provide free air transportation for people in need of medical care not available to them locally. Tim is also a sommelier and enjoys travel. He lives in Dallas with hi wife, Lisa. They have three daughters.

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