
Gut+Science explores employee engagement insights you can act on, from CEOs you can trust. Get ready for high energy interviews led by employee engagement evangelist Nikki Lewallen—ones that’ll have you rethinking what it means to build successful people-first cultures.
Leadership is not loudest when it gives orders. Sometimes, it sounds like a mayor sitting in a neighborhood meeting, listening long enough to hear what the city actually needs.
Katherine sits down with Greg Ballard, author, businessman, former Marine, and the 48th mayor of Indianapolis, to explore the leadership habits that shaped his journey from the Marine Corps to city hall. Greg shares why clarity, collaboration, sincerity, and listening are not just communication skills, they are the foundation of trust.
From grassroots campaigning to leading a major metropolitan city, Greg offers a grounded reminder for every people-first leader: you do not need to have every answer, but you do need the humility to listen, the courage to decide, and the consistency to do the right thing for the right reasons.
Additional Resources:
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Key Takeaways:
- Leadership is influence, not authority.
- Listening builds credibility before words do.
- Strong teams challenge your thinking.
- Start with yes, then solve.
- Trust grows through consistency and sincerity.
















Nikki Gregory
Gut + Science
Gut + Science is a mentoring platform for people-first leaders of all levels. We talk to exceptional leaders who prioritize culture, get fired up about employee engagement, and are excited to share ideas and tools for bettering employee experiences.
We are on a mission to improve employee engagement by inspiring and equipping leaders to help employees thrive at work. Host Nikki Gregory highlights accomplished, people-first CEOs (and executives) that share their powerful mindsets, experiences and tools that have helped them succeed. Content experts share education and inspiration on topics such as diversity and inclusion, emerging and lucid leadership, and corporate social responsibility. We named the show Gut + Science because leaders need both data and experiences to guide decision making.
Nikki is passionate about helping millions love their work, about giving back, about investing in people. In Gut + Science, these callings come to life in the form of high-energy interviews designed to help pave the way for people-first cultures, and give leaders the inside scoop on how to build winning cultures and companies. Nikki has helped countless executives make meaningful, relationship-oriented investments.