Shows
growth-minded SUPERHEROESFrom AI Overwhelm to AI Advantage: A Playful Guide with Cornelia SchnellAre you still unsure what to make of AI?Does it feel more like a threat than a tool?You’re not alone and this episode will change the way you think about it.In this new episode of the GMS Podcast, we take you on a playful yet deeply insightful journey into the world of AI adoption.Starting from a place of fear and overwhelm, we explore how to turn AI into an advantage without losing your human superpowers.Together we dive into:The 4 levels of AI adoption from Le...2025-07-2946 min
growth-minded SUPERHEROESWhat Booking.com Taught Me About Failing Faster (and Smarter) with Stuart FrisbyWhat does it take to build a culture where failure isn’t feared but celebrated? In this episode, we sit down with Stuart Frisby, Director of Brand & Experience Design at Deliveroo and former Head of Design at Booking.com, to explore what it really means to design for impact.From launching thousands of experiments to leading design through hypergrowth, Stuart shares hard-earned insights on experimentation, scaling teams, and the power of humility. Discover why Booking.com’s success wasn’t built on big bets but on small, fast, and frequent tests that turned data into dominance.Key...2025-07-2250 min
growth-minded SUPERHEROESBravery in Experimentation: Erin Weigel's Guide to Bold Innovation and ImpactIn this episode of the GMS Podcast, Julia sits down with Erin Weigel, a true pioneer in the world of product design and experimentation.Erin shares her insights on making experimentation more approachable, fun, and impactful. From her legendary GMS talk to her bestselling book Design for Impact, Erin's unique approach to design and experimentation is revolutionizing how teams tackle innovation.Key Highlights:Why experimentation doesn't need to be a "boring academic exercise"The real purpose behind Erin’s book Design for Impact and why it resonates globallyThe im...2025-07-0829 min
growth-minded SUPERHEROESIs Your Agency Doomed? The Brutal Truth About Experimentation, AI & What Comes NextIs your agency ready for the future or strapped into the crash test dummy headed straight for the wall?In this explosive episode, André Morys sits down with Craig Sullivan (experimentation evangelist) and Dennis van der Heijden (CEO of Convert.com) to unpack the raw, uncomfortable truths revealed in the Agency & Vendor Experimentation Ecosystem 2025 Report.Agencies are angry. Trust is broken. The era of “running tests” is dead, and the commoditization of execution work is accelerating. If you want your agency to survive and thrive you’ll need to pivot to what only humans can deliver...2025-07-0153 min
growth-minded SUPERHEROESSPECIAL: GMS 2025 Recapped - What Moved Us MostIn this special episode, André and Julia take you behind the scenes of GMS 2025 (growth-minded SUPERHEROES), just one week after the live event on June 18th, 2025 at Alte Oper Frankfurt.They reflect on the energy, the people, the ideas, and the unforgettable moments that made this year’s summit one of the most inspiring yet. From LEGO towers and live music to powerful keynotes and goosebump moments. It's a raw, honest, and passionate recap from two people at the heart of it all.Tune in to hear:Why “purpose” and “passion” were the unofficial...2025-06-2447 min
growth-minded SUPERHEROESThe Untold Truth About Testing Culture You’ll Wish You Knew Sooner with Kelly WorthamWhat does it really take to build a thriving experimentation culture - not just in one company, but across an entire industry?In this episode of the GMS Podcast, we sit down with Kelly Wortham, founder of the Test & Learn Community (TLC), former global optimization lead at Dell, and one of the most influential voices in experimentation today.Kelly shares the story behind the birth of TLC, reveals why online and in-person connection is more crucial than ever, and unpacks the most overlooked pitfalls optimizers still fall into. From the power of asking questions to...2025-06-1746 min
growth-minded SUPERHEROES3 Easy Copy Fixes That Could Boost Your Conversions Today with Amy HarrisonHow do you move from vague, forgettable messaging to vivid copy that actually converts? In this episode, we’re joined by Amy Harrison - copywriting strategist, speaker, and founder of Write With Influence - to talk about how great copywriting intersects with experimentation, psychology, and strategy.Amy shares her most practical tips for writing copy that resonates, stands out, and gets results - without sounding like every other “growth” company out there.What you’ll learn in this episode:How to swap empty impact statements for testable, vivid “do” statementsWhy clarity beat...2025-06-1041 min
growth-minded SUPERHEROES5 Brutally Honest Growth Secrets (That Most Leaders Ignore) with Chris OutIn this powerful episode, growth strategist and author Chris Out shares why most organizations hit invisible ceilings - and how true business growth always starts with personal transformation.We dive deep into:Why every organization is a system of bottlenecksThe difference between wanting growth and being ready for itHow fear, ego, and self-deception silently hold you (and your business) backWhy installing A/B testing tools is easy - but building a growth culture isn’tThe exact moment Chris knew he ha...2025-06-0356 min
growth-minded SUPERHEROESMilk the Lemon, Ditch the Hack: Daphne Tideman on Real Growth, Team Balance & Brave ExperimentationWhat happens when you mix a growth strategist, a juicy lemon, and the power of purposeful experimentation?In this episode of the GMS Podcast, we welcome Daphne Tideman - renowned growth advisor, former Head of Growth at Heights, and co-founder of the Women in Experimentation Community.Join us for a candid and insightful conversation on:Why growth isn’t a department - but a mindset“Squeezing the lemon” vs. chasing shiny orangesHow to balance planners & explorers in your teamCreating psychological safety through structureLessons from leading eco-conscious, DTC growthWhy “growth hacking” is dead—and what’s nextBehind t...2025-05-2751 min
growth-minded SUPERHEROESPerfectionism Is Killing Your Experiments: Why ‘Good Enough’ Might Be the CRO Superpower You’re Ignoring with Christoph Rottler-LavoieWhat if your obsession with perfect test designs and pixel-perfect CTAs is actually holding your experimentation program back?In this eye-opening episode, we talk with Christoph Rottler-Lavoie, Country Manager DACH at Kameleoon, about the invisible costs of perfectionism in A/B testing - and what truly matters when it comes to experimentation velocity, stakeholder buy-in, and sustainable growth.We dig deep into Christoph’s engineering-driven mindset, why scientific rigor needs to be balanced with pragmatic decision-making, and how to empower teams to just start testing. He shares stories from the trenches, controversial takes on significance th...2025-05-2046 min
growth-minded SUPERHEROESPerfectionism Is Killing Your Experiments: Why ‘Good Enough’ Might Be the CRO Superpower You’re Ignoring with Christoph Rottler-LavoieWhat if your obsession with perfect test designs and pixel-perfect CTAs is actually holding your experimentation program back?In this eye-opening episode, we talk with Christoph Rottler-Lavoie, Country Manager DACH at Kameleoon, about the invisible costs of perfectionism in A/B testing - and what truly matters when it comes to experimentation velocity, stakeholder buy-in, and sustainable growth.We dig deep into Christoph’s engineering-driven mindset, why scientific rigor needs to be balanced with pragmatic decision-making, and how to empower teams to just start testing. He shares stories from the trenches, controversial takes on significance th...2025-05-2046 min
growth-minded SUPERHEROESStakeholder Resistance Is a Gift: Here’s How to Use It with Ruben de BoerWhat if the resistance you’re facing in your experimentation program isn’t a blocker - but your biggest opportunity?In this episode, Julia Rumpf & André Morys sit down with Ruben de Boer, a global thought leader in experimentation culture and stakeholder alignment. Together, they explore how to make experimentation stick inside real-world organizations - and how to turn resistance into radical collaboration.💡 In this episode, you’ll learn:Why growth is more than a metric - it’s a mindset and a way of lifeHow to treat internal stakeholders like custome...2025-05-1347 min
growth-minded SUPERHEROESWhy Your Data Storytelling Sucks And How to Fix It with Tim CeuppensJulia and André sit together with Tim Ceuppens, CMO of the Belgian brand Pit&Pit, to uncover the surprising truth about why most data presentations fail.In this episode, Tim shares how he turned boring, ineffective reporting meetings into compelling business discussions - by transforming the way we tell stories with data. From Pixar story structures to Jurassic Park analogies and real-life corporate lessons, Tim delivers an insightful, entertaining, and incredibly practical masterclass on data storytelling.You’ll also learn how cognitive biases hijack our dashboards, why too many numbers destroy clarity, and how to pre...2025-05-0644 min
growth-minded SUPERHEROESHidden Truth: Why You're Possibly Not Unleashing Your Full Potential with Lucia van den BrinkIn this episode, André and Julia sit down with none other than Lucia van den Brink - founder of IncreaseConversionRate.com and the driving force behind the global Women in Experimentation community.Lucia has run over 1,000 A/B tests, influenced 55+ million visitors, and worked with both scrappy startups and billion-dollar brands. But what makes her stand out is her radical view of experimentation as a truth-seeking mechanism - one that can disrupt hierarchies, challenge egos, and even drive change in toxic company cultures.Key Highlights:Lucia’s first experiment at age 11: selling clay bra...2025-04-291h 01
growth-minded SUPERHEROESThe Hidden Superpower of Experimenters (It’s Not What You Think) with Luiza de LangeIn this episode of the GMS Podcast, André and Julia sit down with Luiza de Lange - a passionate leader, experimentation expert, and former GMS speaker - for a powerful conversation that goes way beyond data and A/B tests.Luiza shares how a single A/B test completely changed the way she thinks, why most companies are sitting on untapped data gold, and what it really takes to lead high-performing teams in a fast-moving digital world. This episode is full of raw insights, personal reflections, and practical inspiration.What you'll learn in this episode:2025-04-2247 min
growth-minded SUPERHEROESThe Billion-Dollar Prompt That Changed Everything with Tim CortinovisWhat if AI could not only boost your productivity but totally redefine your work-life?In this energizing episode of the GMS Podcast, André and Julia sit down with AI strategist, keynote speaker, and author Tim Cortinovis to explore how automation, mindset, and bold experimentation are shaping the future of work.Tim reveals how he’s automated huge parts of his business - from email to calendar management - and how anyone can start using AI today, no matter their role.🔍 In this episode, you’ll learn:Why “dumb work” is killing your creativ...2025-04-1558 min
growth-minded SUPERHEROESDesigning for Growth: How Experimentation Shapes Winning Products - with Fonz MorrisHow do you design products that truly drive growth? In this episode of the GMS Podcast, Fonz Morris, a seasoned Growth Designer and experimentation advocate, shares hard-hitting insights on how product teams can blend UX, business goals, and experimentation to build products that actually win.🚀 What you'll learn in this episode:✅ Why experimentation is your best friend as a designer and why avoiding A/B testing might be a sign of ego.✅ The biggest mistakes designers make when balancing aesthetics with business impact.✅ How growth design differs from traditional UX and why designers need to think...2025-03-1158 min
growth-minded SUPERHEROESAsking the Right Questions: The Key to Ethical and Impactful Experimentation - with Els AertsIn this episode of the growth-minded SUPERHEROES Podcast, André Morys and Julia Rumpf sit down with Els Aerts, one of the most respected voices in user research and experimentation.They dive deep into the critical role of qualitative research in making better business decisions, the biggest mistakes companies make when gathering user insights, and the ongoing debate about AI's role in research. Els shares her expertise on how to ask the right questions, avoid misleading data, and connect business success with real user needs.🚀 Key Takeaways:🔷 Why experimentation is all about helping businesses make better...2025-03-0445 min
growth-minded SUPERHEROESCRO, Bullsh*t Best Practices, and Why You Should Test More - with Shiva ManjunathAre best practices ruining your experimentation strategy? In this no-BS episode, André & Julia sit down with Shiva Manjunath, host of the podcast "From A to B" and expert in A/B testing, CRO, and stakeholder management, to discuss why blindly following best practices can be a huge mistake - and what you should be doing instead.🔥 In this episode, we cover:- Why “best practices” are often just outdated myths- The psychology behind why people crave silver bullets instead of real testing- Why curiosity, skepticism, and experimentation go hand in hand- How to...2025-02-2554 min
growth-minded SUPERHEROESFrom CRO to Center Stage: Michael Aagaard on Mastering Storytelling & Avoiding Brand DisappointmentIn this episode, André Morys and Julia Rumpf sit down with Michael Aagaard, a seasoned CRO expert turned storytelling and presentation coach, to explore the intersection of conversion optimization, public speaking, and brand trust.Michael has been a staple at GMS, delivering high-energy, insight-packed talks that leave audiences inspired. While he made his name in A/B testing, microcopy, and call-to-action optimization, his journey has now evolved into helping experts craft powerful, unforgettable presentations that truly connect with their audiences.Together, we dive into:🔷 The psychology of disappointment - Why it’s a brand...2025-02-181h 08
growth-minded SUPERHEROESHow to Make Better Product Decisions, Win Over Leadership & Scale Testing with Nils StotzIn this episode of theGMS podcast,André Morys and Julia Rumpf sit down with Nils Stotz, who leads theexperimentation platform product team at Zalando. They dive into whyexperimentation is the key to better decision-making - but also why so many companies still get it wrong.Nils shares his journey fromfinance to experimentation, revealing how he became obsessed with data-driven decision-making and why he believesexperimentation should be the default approach in product and business strategy.They tackle some of thebiggest misconceptions about A/B testing, thecommon objections from leadership, and why many organizationsstruggle to make experimentation a...2025-02-1154 min
growth-minded SUPERHEROESOptimizing the Optimizer: Finding the balance between Tweak and Transformation - with Ton WesselingIn this episode of the GMS Podcast, Julia and André dive deep into the world of experimentation with Ton Wesseling - one of the industry’s most respected experts. As the founder of Online Dialogue and the visionary behind Conversion Hotel, Ton has spent decades shaping the way companies approach A/B testing, CRO, and evidence-based decision-making.
Together, they explore:🔹 The Optimizer’s Disease - why experimenters sometimes can’t stop tweaking and when to let go.🔹 How to scale from 100 to 1,000+ experiments per year - and why so many companies get stuck.🔹 The missing link bet...2025-02-041h 13
growth-minded SUPERHEROESMessage-Market Fit: Your Most Overlooked Growth Lever with Diane WireduIn this episode of growth-minded SUPERHEROES, Julia & André sit down with Diane Wiredu, founder of Lion Words and a leading expert in B2B messaging strategy. Diane specializes in helping SaaS and tech companies achieve message-market fit - a powerful yet often overlooked growth lever that can make or break your marketing success.
Through a customer-led approach, Diane unpacks how businesses can communicate their value clearly, resonate with their audience emotionally, and drive meaningful results.
Whether you're a marketer, experimenter, CRO specialist, or product manager, this episode is packed with actionable insights to elevate your m...2025-01-281h 17
growth-minded SUPERHEROESThe 80/20 Experimentation Rule: Secrets to Winning with Data from Booking.com's Jorden LentzeWhat if 80% of your experiments failed - but the remaining 20% transformed your business? In this episode of growth-minded SUPERHEROES, Julia & André welcome Jorden Lentze, Senior Product Manager Apps at Booking.com, for an eye-opening conversation on experimentation, data-driven decisions, and the evolution of testing in app development.
With over 15 years of experience, Jorden shares Booking.com's secrets for running successful experiments and the surprising benefits of removing features instead of always adding them.
Key Takeaways from this Episode:
Why 80% of experiments might fail, but the 20% that succeed are invaluable.
The power of "subtract before a...2025-01-2139 min
growth-minded SUPERHEROESUnlocking Emotional Resonance in Optimization with Talia WolfIn this episode of growth-minded SUPERHEROES, we dive deep into the transformative power of emotional targeting with Talia Wolf, founder of GetUplift and creator of the Emotional Targeting Framework. Talia shares her groundbreaking strategies for leveraging emotions to revolutionize optimization and drive growth. Don’t miss this insightful conversation!
Key Learnings:
Why emotions are at the heart of every decision: "We don’t buy products. We buy better versions of ourselves."
The power of emotional targeting in B2B: Discover how understanding self-image and social image can transform your strategies, even in technical and...2025-01-1450 min
growth-minded SUPERHEROESCrafting Copy That Converts: Eden Bidani’s Secrets to Strategic MessagingIn this episode of growth-minded SUPERHEROES, Julia and André explore the strategic art of conversion copywriting with Eden Bidani, renowned copywriter and messaging expert.
Eden shares her journey into the world of copywriting, uncovering how strategy and data-driven insights transform words into powerful tools for driving ROI. She highlights the often-overlooked role of copywriters in experimentation and product teams and reveals how her "What’s In It For Me" framework simplifies creating high-converting landing pages.
Tune in for a captivating discussion on the intersection of creativity, strategy, and technology, and discover how to...2024-12-3145 min
growth-minded SUPERHEROESYou Are What You Measure: The Secret to Intent-Driven Personalization with David MannheimIn this episode of growth-minded SUPERHEROES, Julia and André dive into the art and science of personalization with David Mannheim, founder of Made With Intent and author of The Person and Personalisation.
David shares his journey from CRO agency owner to champion of personalization, highlighting the pitfalls of focusing solely on conversions and the transformative power of intent-driven selling.
Tune in for a fascinating discussion on why "you are what you measure" and how aligning how you sell with how people actually buy can revolutionize your business.
Key learnings that you'll get when l...2024-12-2446 min
growth-minded SUPERHEROESStart Small, Think Big - Innovation, Experimentation, and AI in Marketing with Björn RaddeIn this episode of growth-minded SUPERHEROES, Julia and André sit down with Björn Radde, VP of Digital Marketing and Innovation at T-Systems, to explore the power of starting small to drive innovation in large organizations. Björn shares his insights on leading agile pilot teams, integrating experimentation into corporate culture, and leveraging AI to supercharge marketing strategies.
From actionable tips on pitching ideas to the C-suite to fostering a failure-friendly culture, Björn delivers practical advice for marketers, leaders, and innovators.
Discover how collaboration between humans and AI is shaping the future of marketing and...2024-12-1733 min
growth-minded SUPERHEROESSani's 5 + 1 Traits of Great Optimizers: Humility, Empathy, and the Courage to FailIn this episode of the GMS Podcast, Julia and André sit down with Slobodan "Sani" Manic, host of the NoHacks podcast and an experienced web optimization specialist. Sani has spent over a decade interviewing top experimentation experts and refining his own approach to CRO, performance optimization, and web analytics.
Join us as Sani shares his journey, the key traits of successful optimizers, and how experimentation principles can transform not just businesses, but also personal growth.
Listeners will discover Sani's unique insights into building meaningful connections, mastering critical thinking, and why humbleness is the cornerstone of g...2024-12-0343 min
growth-minded SUPERHEROESExperimentation Myths, Failures, and Wins: A Deep Dive with Lukas VermeerIn this thought-provoking episode, we welcome Lukas Vermeer, a renowned expert in experimentation and former experimentation lead at Booking.com, to discuss the transformative power of data-driven decision-making.
Lukas dives deep into the challenges, misconceptions, and incredible potential of building an experimentation-driven culture within organizations.
Here's what you'll learn when listening to this episode:
Balancing Humility and Curiosity: Why intellectual honesty and curiosity are critical traits for leaders driving experimentation
From Gut Feelings to Data-Driven Decisions: How to pitch experimentation to C-level executives and secure their buy-in effectively
Start Small, Scale Strategically: Practical advice...2024-12-0354 min
growth-minded SUPERHEROESFrom Feature Factory to Experimentation Excellence: Stewart Ehoff’s 6-Year Transformation JourneyWhat does it take to transform a traditional organization into a hub of experimentation excellence? In this episode, we sit down with Stewart Ehoff, the award-winning head of experimentation at RS Group, who shares his inspiring six-year journey from frustrated software engineer to building an experimentation program recognized as best in class.
Hosted by Julia Rumpf and André Morys, this conversation is packed with invaluable lessons on leveraging experimentation to drive real change and measurable outcomes.
You’ll hear how Stewart overcame challenges, won over stakeholders, and embedded a culture of testing and learning across a n...2024-12-0354 min
growth-minded SUPERHEROESTrailer growth-minded SUPERHEROESLearn what you can expect from listening to our GMS Podcast.2024-12-0201 min
CRO.CAFE EnglishGrowth Minded SuperheroesNext week, the Growth Marketing Summit event will take place in Frankfurt Germany, CRO.CAFE will be there with our own booth to record experts from the stage and audience. In this episode you'll get a short preview with the organisers of the event: André Morys and Julia Rumpf! Guest 1: Andre Morys URL: https://www.cro.cafe/guest/andre-morys | Guest 2: Julia Rumpf URL: https://www.cro.cafe/guest/julia-rumpf
(00:00) - Welcome Back to CRO.CAFE
(00:20) - Upcoming Growth Marketing Summit
(01:01) - Origins of the Conversion Summit
(03:30) - Evolution of the Event's Name
(11:21) - Importance of In-Person Networking
(14:32) - Pr...2024-06-1119 min