Carliss Baldwin & Kim Clark — Design Rules: How IBM Created Ecosystems (and Competitors)

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“The act of modularizing your product is the very act of inviting your future competitors into existence.”

Carliss Baldwin and Kim Clark, authors of the landmark Design Rules: The Power of Modularity, join Aidan McCullen for an Innovation Show exclusive. Their book is the Rosetta Stone of platform strategy — the mechanic underneath the Innovator’s Dilemma — and it has never been more relevant than in this age of AI.

In this conversation, Carliss and Kim reveal:

  • Why the power of modularity underpins Moore’s Law — and everything digital around us
  • How IBM engineers, locked in a Connecticut motel before Christmas, invented the first conscious modular platform strategy
  • How the System/360 turned IBM from a competitor into “the environment”
  • Why the engineers who walked out of IBM’s San Jose plant spawned the entire disk-drive industry
  • How IBM owned 30% of Intel and contracted Microsoft — yet failed to own the only two sources of profit in the PC ecosystem
  • Why “the game is never incontestably won”
  • Why Sears couldn’t become Walmart, and Walmart couldn’t become Amazon
  • The Chevy Vega that shook itself apart on the test track — and the cost of losing tacit knowledge
  • Why AI agents are forcing companies to map their workflows for the first time
  • How Haier replaced twelve layers of management with 4,000 entrepreneurial teams
  • Why leadership is the operating system of the organisation

00:00 Why This Book Matters
00:33 Modularity For Founders Investors
01:39 Meet The Authors
02:25 What Are Design Rules
03:43 Design Rules Everywhere
06:50 Digital Tech Meets Software
10:52 IBM System 360 Breakthrough
14:22 Artifacts And Interfaces
20:55 Ecosystem Value Migration
26:10 Capturing Value In Platforms
30:23 AI And Measuring Modularity
34:08 Architectural Change And Retail
37:37 Why Incumbents Survive Or Die
43:28 Modularity Creates Options
44:48 Incumbents Miss Nuances
47:09 AI Needs Workflow Maps
52:18 Tacit Knowledge Lost
54:13 Small Car Hood Failures
59:00 Why Ideas Bomb
01:01:28 History Constrains Firms
01:05:52 Modular Organisations Rise
01:08:58 Haier Team Ecosystems
01:17:41 Leadership As Operating System
01:21:55 Spandrels And Tech Reality
01:27:53 Closing Reflections

About the Guests
Carliss Y. Baldwin is the William L. White Professor of Business Administration, Emerita, at Harvard Business School and author of Design Rules, Volume 2: How Technology Shapes Organizations (MIT Press). Kim B. Clark is a former Dean of Harvard Business School, NAC Distinguished Professor of Management at BYU Marriott School of Business, co-author of Leading Through, and co-founder of the Leading Through Institute. Together they wrote Design Rules, Volume 1: The Power of Modularity (MIT Press).
Design Rules, Volume 2: https://mitpress.mit.edu/9780262049337/design-rules-volume-2/
Leading Through Institute: https://leadingthrough.co

About the Host
Aidan McCullen is a 2025 Thinkers50 Innovation Award recipient, keynote speaker on AI, disruption, innovation and change, host of The Innovation Show, and author of Undisruptable: A Mindset of Permanent Reinvention (Wiley). More at https://theinnovationshow.io/about-aidan-mccullen

About The Innovation Show
The Thinkers50-recognised podcast where square pegs find their place in a world of round holes.

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