Disruption (the innovator's dilemma)
Successful companies fail not because they're stupid but precisely because they keep doing everything right for their current customers.
Clayton Christensen's "The Innovator's Dilemma" (1997) is one of the most important strategy books of the last 50 years. The key insight: incumbents lose to disruptors because the disruptor's product looks bad on the metrics incumbents care about. By the time it looks good, it's too late.
The pattern: 1. A new entrant builds something cheap, simple, and worse than the incumbent's product 2. Mainstream customers reject it, they want the better product 3. The new entrant gets footing with low-end customers the incumbent doesn't really want 4. The new entrant improves quickly, moving upmarket 5. By the time the disruptor threatens the incumbent's core market, the incumbent has built up too much organisational inertia to respond
Examples:
- Steel: minimills (Nucor) started with rebar that big steel didn't want. Eventually took the whole industry.
- Computers: PCs started cheaper and worse than mainframes. Now mainframes are mostly gone.
- Phones: smartphones started worse than BlackBerry for business email. Now BlackBerry is mostly gone.
- Banking: digital banks started simpler and worse than full-service. Now most banking is digital-first.
Why incumbents can't respond, even when they see it coming:
- Their best customers say "I don't want that worse product"
- Their financial models show low-end markets as unattractive
- Their managers are rewarded for keeping current customers happy, not for entering low-end markets at low margins
- Cannibalising yourself to compete with a disruptor is politically impossible inside a successful company
Christensen identified two types of disruption:
- Low-end disruption: cheaper version that gets better over time (Nucor, Walmart, Vanguard)
- New-market disruption: enables uses that didn't exist before (PCs, smartphones, Airbnb)
How incumbents can survive disruption (rarely done well):
- Create a separate organisation to attack yourself before someone else does. Apple's iPhone team was deliberately walled off from the iPod team. The iPod team would have killed the iPhone.
- Take low-end markets seriously even when the margins look bad
- Acquire disruptors early, before they're big enough to demand premium prices
The honest read for any incumbent: most of the time, even when you know disruption is happening to your industry, the rational moves your existing business demands will prevent you from responding to it. The dilemma in the title is real.
Examples in the wild
Kodak invented the digital camera in 1975 but couldn't commit to it because film was 80% of their profits. Classic innovator's dilemma. They eventually went bankrupt, having known about the threat for 30 years.
Many large public companies trade at low P/E ratios because investors can see disruption coming. Cable, traditional retail, traditional auto. The market is pricing in the dilemma.
Career-level disruption is real too. The senior person whose expertise is in a dying methodology is the personal version of the incumbent. The defence is to keep relearning, even when the new skills feel worse than what you already know.
Disruption (the innovator's dilemma) is one of the mental models we apply through real cases inside the Pareto MBA — a part-time program for professionals who want to think clearly about business.