Gut + Science

Gut + Science

Gut+Science is a fast-paced, storytelling-oriented podcast that provides leadership experiences from both an emotional and calculated lens. People-first minded executives and thought leaders share on the topics they are most passionate about, serving as mentors for our ever growing audience. Host Nikki Lewallen Gregory loves to bring out the fire in people and highlight the newest needed tools and information that build more meaningful work experiences.

Episodes

March 20, 2025 36 mins

Company rituals aren’t just for fun—they’re the glue that holds teams together.🤝

In this episode, Una Japundza, CRO at HeyTaco, joins Nikki to unpack the magic of rituals in building connection, reinforcing values, and making work more meaningful. From sports teams to remote workplaces, Una shares why small, repeated actions create BIG impact.

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Employees crave feedback—96% say they want it! But let’s be honest… giving and receiving feedback can be awkward. 😬 In this episode of “In the Loop”, Katherine is tackling the art of feedback—how to do it well, when to give it, and why it matters.

Inspired by "Radical Candor" by Kim Scott, Katherine explores how to balance caring personally while challenging dire...

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March 14, 2025 33 mins

🚀 Say goodbye to pointless meetings!

Ever sat through a meeting and thought, Could this have been an email? 🤦‍♂️

In this final special episode from The Roots Up Approach, Steve and Nikki are here to fix that with a simple but powerful framework: Flare, Focus, and Share.

Learn how to run ...

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🏀 What separates a losing team from a winning one? Culture.

Sean Glaze learned this the hard way—after a brutal 21-loss season as a basketball coach. But one aha moment changed everything, turning his struggling team into a powerhouse.

In this episode, Sean shares how the same principles that transformed his team can revoluti...

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March 7, 2025 43 mins

Delegation isn’t just about offloading tasks—it’s about unlocking your team's potential! 🚀

In this episode of The Roots Up Approach, Steve and Nikki dive into Dynamic Delegation, a game-changing approach that makes delegation easier, smarter, and way more effective.

Steve shares the story of Marla, a leader on the brink of bu...

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💡 One "yes" can change everything!

In this episode, Amanda Medlen, CEO of IDO Incorporated, shares how a last-minute decision to attend an event led her to meeting her CFO (talk about serendipity! ✨). She dives into why community, connection, and collaboration are game-changers for both leadership and mental health.

From inte...

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February 28, 2025 44 mins

Ever feel like your team is always busy but not actually moving the needle? You’re not alone.

In this episode of The Roots Up Approach, Steve and Nikki unpack the secret to cutting through the chaos: the Weekly Planning Rhythm—a simple, game-changing system to set clear priorities, stay focused, and actually get things done.

S...

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February 27, 2025 41 mins

Ever felt like something at work just wasn’t clicking—but you couldn’t put your finger on why? 🤔 Enter Awareness of Fit, the secret sauce behind thriving teams and seamless collaboration!

In this episode, Matt Poepsel, VP of Talent Optimization at Predictive Index, joins Nikki to break down how understanding fit—across strategy, culture, and team dynamics—can mak...

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February 21, 2025 40 mins

🗓️ Hate one-on-one meetings? You’re not alone. But what if they could actually be energizing, productive, and something you look forward to?

In this kickoff episode of The Roots Up Approach, Steve Perkins from Greenhouse joins Nikki to share how simple tweaks can turn one-on-ones into a leadership superpower. No more boring status updates—learn how to build trust...

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Great leadership starts with great communication! 🚀

In this episode of In the Loop, Katherine is joined by Sue Finkam — Mayor of Carmel, IN — as she shares her best tips for casting vision, overcoming resistance to change, and handling public criticism like a pro. From storytelling to soundbites, she reveals how leaders can communicate with impact—whether in the ...

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What happens when you look beyond someone’s job title? 🌟

On this episode, Nikki sits down with Charlie Saffro, CEO & Founder of CS Recruiting, to explore the magic of intentional connection. From quirky team rituals (think sticky notes and Frosty coupons!) to authentic feedback using the FBI model, Charlie shares her secrets for creating people-first workplaces w...

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What’s your purpose story?

On this episode, Nikki is joined by Marshall Lockton, entrepreneur and Partner of Knight Agency, takes us on a journey from his family’s business at Lockton Companies to his passion for purpose-driven leadership. Marshall shares how crafting meaningful stories fuels performance, builds connection, and brings purpose to life.

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In this episode of Gut + Science, Nikki sits down with Azizi Marshall, a workplace mental health expert and international speaker, to tackle the bold truth: mental health care is a must-have, not a nice-to-have.

From startling stats (1 in 4 adults face mental health challenges!) to ripple effects in workplace culture, Azizi shares actionable insights on turning da...

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Core values: are they driving your culture or just filling up wall space?

Katherine Coble unpacks how to make your values real—think Chick-fil-A-level real. From hiring and onboarding to tough decisions that protect your culture, Katherine dives into what it takes to walk the talk.

Ready to transform words on a wall into actio...

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Work and life don’t have to compete!

In this exciting kickoff to a new partnership with Steve Perkins of Greenhouse Coaching, Nikki and Steve discuss the "Roots Up" approach—a fresh way to grow the life and team you want. Learn how to ditch the chaos, design with intention, and create thriving cultures where work works for you. It’s practical, inspiring, and packe...

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January 9, 2025 41 mins

What happens when leaders lose their spark, their confidence, and their sense of direction? Enter Work Twisties—a concept Ify Walker brings to life in this episode of Gut+Science.

Inspired by Simone Biles' "twisties," Ify shares her raw, emotional story of grief, self-doubt, and rebuilding after losing her biggest champion.

Th...

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In this episode, Nikki chats with Michelle Yates, EVP at Pet Partners, about the magic of pet-friendly perks in the workplace. 🐾

From “pawternity” leave to pet photo contests, discover how honoring our furry friends boosts connection, engagement, and happiness at work. Whether you're a dog lover, a cat cuddler, or just admire from afar—this episode is for you!

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2024 flew by, and Nikki is here to wrap it up with a bang! 💥

In this heartfelt solo episode, she shares six powerful lessons—from focusing on progress over perfection to building life-giving relationships and protecting your vibe. Packed with practical tips and good vibes, this episode is your nudge to reflect, recharge, and take on 2025 with intention.

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In this episode of In the Loop, Katherine is joined by Fred Payne, CEO and President of United Way of Central Indiana, and they’re discussing all things leadership, community, and the power of storytelling!

Fred shares his journey from practicing law to leading workforce initiatives and overcoming personal health challenges, all while staying true to his mission o...

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Get ready for a storytelling masterclass!

Nikki sits down with Danielle Krischik - Partner at Knight Agency and host of the new show The Story Effect - to reveal why storytelling is the ultimate connection hack. From captivating beginnings to real, relatable moments, Danielle shares her simple storytelling formula that any leader can master. Packed with inspiratio...

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