Ellie Norman — Chief Marketing Officer at Formula E and former Chief Communications Officer at Manchester United — joins Rory Sutherland and Elfried Samba to talk about her time at Honda and Virgin Media through to Formula One and now Formula E.

Ellie explains how she walks into every room convinced she doesn't have all the answers, is always asking questions, and always learning.

The conversation explores how constraint forces creativity, why brand defensibility matters more than impression counts, and how the creator economy is rewriting the rules of sports marketing.

This episode unpacks what it really means to build fame, be easy to find, and be hard to leave — why she likes to hire people who are comfortable with uncertainty — and why common sense remains the rarest skill in any marketing department.

Follow Rory

Instagram: @rorysutherland_clips

TikTok: @Rorysutherlandclips

X: @rorysutherland

LinkedIn: in/rorysutherland/

Follow Elfried

Instagram: @elfriedsamba

LinkedIn: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Ellie Noman

LinkedIn: https://www.linkedin.com/in/ellietory/

X: https://x.com/EllieMNorman

https://www.fiaformulae.com/en

A Sassy+ original podcast series

Dr. Eliza Filby — historian and author — joins Rory Sutherland and Elfried Samba to examine why inheritance now matters more than income.

The conversation explores how the Bank of Mum and Dad has become a private financial system, why wages no longer deliver independence, and how access to family money shapes the risks people can take.

It looks at why Gen Z now inhabits a world where work alone no longer leads to security or progress.

This episode unpacks what happens when families quietly replace markets and the state as the real source of economic stability.

Follow Rory

Instagram: @rorysutherland_clips

TikTok: @Rorysutherlandclips

X: @rorysutherland

LinkedIn: in/rorysutherland/

Follow Elfried

Instagram: elfriedsamba

LinkedIn: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Eliza Filby

TikTok: @eliza_filby

Instagram: @dr_eliza_filby

A Sassy+ original podcast series

Oscar Ryndziewicz — founder of DFYNE — joins Rory Sutherland and Elfried Samba to unpack the decisions behind one of the UK’s fastest-growing private companies.

Ryndziewicz explains how DFYNE grew from a £6,000 credit card bet into a global activewear brand, why the company chose to scale from Glasgow rather than London, and how autonomy, simple metrics and trust replaced traditional management controls as the business expanded.

Drawing directly from DFYNE’s growth journey — culminating in its recognition as the UK’s fastest-growing private company in The Sunday Times 100 — this conversation explores how location, culture and leadership design quietly shape scale.

This episode looks at what happens when founders stop optimising for appearances, focus on outcomes instead of activity, and build systems that let people think for themselves.

Follow Rory

Instagram: @rorysutherland_clips

TikTok: @Rorysutherlandclips

X: @rorysutherland

LinkedIn: in/rorysutherland/

Follow Elfried

Instagram: elfriedsamba

LinkedIn: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Oscar

Instagram: @dfyne.official

https://uk.dfyne.com/

A Sassy+ original podcast series

Clarke Ching — author of The Bottleneck Detective — joins Rory Sutherland and Elfried Samba to unpack why progress stalls, how leaders quietly become constraints, and why fixing the obvious problem often makes things worse.

Most organisations don’t fail because of a lack of effort.
They fail because effort is applied in the wrong place.

From traffic systems and hospitals to founders, governments and scaling teams, this conversation explores how bottlenecks hide in plain sight — and why seeing them requires a different kind of thinking.

This episode is about the uncomfortable truth that growth rarely fails where people expect it to.

Follow Rory:

Instagram: @rorysutherland_clips

TikTok: @Rorysutherlandclips

X: @rorysutherland

LinkedIn: in/rorysutherland/

Follow Elfried:

Instagram: elfriedsamba

LinkedIn: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Clarke:

Linkedin: in/clarkeching/

https://clarkeching.com/

Follow Rory:

Instagram: @rorysutherland_clips

TikTok: @Rorysutherlandclips

X: @rorysutherland

LinkedIn: in/rorysutherland/

Follow Elfried:

Instagram: elfriedsamba

LinkedIn: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Clarke:

Linkedin: in/clarkeching/

https://clarkeching.com/

A @Sassy+ original podcast series

Ama Amo-Agye scaled Plantmade from £100 to £13m — and discovered that success changes the rules faster than founders expect.

Ama joins Rory Sutherland and Elfried Samba to explore how the skills that drive early momentum can quietly become constraints as a business scales.

From building in public to recognising when the company had outgrown her original operating model, this episode examines why success can become the hardest thing to manage.

Follow Rory:


Instagram: @rorysutherland_clips


Tiktok: @Rorysutherlandclips


X: @rorysutherland


Linkedin: in/rorysutherland/

Follow Elfried:


Instagram: elfriedsamba


Linkedin: in/elfriedsamba/


https://www.butterflyeffect.xyz/

Follow Ama:

Instagram: @amaa__official

Tiktok: @amaamoagyei

Linkedin: in/ama-amo-agyei/

A @Sassy+ original podcast series

Growth stalls when founders lose focus.Lottie Whyte, founder of MyoMaster, joins Rory Sutherland and Elfried Samba to unpack how simplifying the business, listening to real demand, and saying no to opportunity unlocked scale.From early trade-show insights and customer objections to near-failure and relentless focus, this conversation explores how clarity, not complexity, drives sustainable growth.

Follow Rory:

Instagram: @rorysutherland_clips

Tiktok: @Rorysutherlandclips

X: @rorysutherland

Linkedin: in/rorysutherland/

Follow Elfried:

Instagram: elfriedsamba

Linkedin: in/elfriedsamba/https://www.butterflyeffect.xyz/

Follow Lottie:

Instagram: @lottiewhyte/

Linkedin: in/lottie-whyte

https://myomaster.com/

A @Sassy+ original podcast series

This episode of The Bottleneck Podcast discusses the toxic nature of modern politics. Economist Nicholas Gruen joins Rory Sutherland and Elfried Samba to explain why debating now feels like a never-ending battle, where the centre ground gets drowned out by the most extreme voices and most people are trying to win arguments rather than solve problems.

They also explore why everyday communities often handle difference better than the internet does, and why GDP is a weak guide to how well a country is really doing. Education and housing, they argue, have increasingly become status bottlenecks rather than engines of shared progress, leaving us spending more without necessarily living better.

Follow Rory:

Instagram: @rorysutherland_clips

Tiktok: @Rorysutherlandclips

X: @rorysutherland

Linkedin: in/rorysutherland/

Follow Elfried:

Instagram: elfriedsamba

Linkedin: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Nick:

LinkedIn: in/nicholas-gruen-783354a

X: @NGruen1

YouTube: https://www.youtube.com/user/NicholasGruen

A @Sassy+ original podcast series

This episode of The Bottleneck Podcast explores what it really takes to build a billion-dollar brand. Ben Francis MBE, founder and CEO of Gymshark, joins Rory Sutherland and Elfried Samba to discuss how obsessive focus, community, and self-awareness turned a side project into one of the UK’s most successful global companies.

Together they unpack the real story behind Gymshark’s rise — from sewing T-shirts at his nan’s dining table to leading a worldwide fitness brand — and reveal why staying close to the customer, thinking like a 19-year-old entrepreneur, and protecting startup energy remain at the heart of Ben’s philosophy.

Follow Rory:

Instagram: @rorysutherland_clips

Tiktok: @Rorysutherlandclips

X: @rorysutherland

Linkedin: in/rorysutherland/

Follow Elfried:

Instagram: elfriedsamba

Linkedin: in/elfriedsamba/

https://www.butterflyeffect.xyz/

Follow Ben:

Instagram: @benfrancis

TikTok: @benfrancis

LinkedIn: in/gymshark/

YouTube: @BenFrancis

A @Sassy+ original podcast series