Disruption Theory
Big companies lose to cheaper, worse products that improve faster than the big company can react.
Why PMs should care
Big companies build for their best customers, and those customers reliably ask for more: more features, more power, more integrations, higher limits. Every request sounds reasonable on its own — and so the roadmap quietly fills up with them.
Meanwhile, a smaller competitor shows up at the bottom of the market with a worse product that's cheaper, simpler, and aimed at customers the big company never cared about. Those customers are happy with 'good enough' — they were never going to pay for the full thing anyway.
Here's the trap: the smaller competitor's product gets better faster than the big company can make its own product simpler. By the time the big company notices, the definition of 'normal' has shifted, the competitor is winning middle-of-the-market customers, and the big company's own customers are starting to ask 'why am I paying for all these features I don't use?'
Example in product work
Robinhood vs Fidelity. In 2012, legacy brokers charged £10 per trade, required a £2,000 minimum balance, and gated options behind a phone call with an advisor. Robinhood launched with zero commissions, no minimum, no advisor, and a list of tradable instruments that was embarrassingly short. Fidelity's existing customers didn't care — they had what they needed. But college students who would never have opened a Fidelity account did. Five years later, Robinhood had 10 million accounts, the product had caught up on most features the median user wanted, and every incumbent had been forced to drop commissions to zero. The disruption wasn't the commission structure; it was that Robinhood built a product for people the incumbents had decided weren't customers.
Nokia vs iPhone. In 2007, Nokia owned roughly 40% of the global handset market, made high-margin enterprise devices with physical keyboards, and had an internal roadmap optimising Symbian for its best customers. Apple launched the iPhone — worse battery life, fewer hardware buttons, a non-removable battery that horrified the industry, a higher price, and a touchscreen most analysts called 'a fad'. Nokia's internal teams wrote memos warning leadership. Leadership pointed at market share and margin. By 2013, Nokia's phone business was sold to Microsoft in a fire sale. The warning signs were inside the company the whole time; the incentive to ignore them came from exactly the customers the incumbent was serving best.
What to do when you see it
- Big companies build for their best customers, who keep asking for more features. The roadmap quietly fills with those requests.
- A smaller competitor enters at the bottom with a worse product that's cheaper and simpler — aimed at customers the big company didn't care about.
- The competitor's product improves faster than the big company can make its own simpler.
- By the time the big company notices, 'normal' has shifted and their own customers are asking why they're paying for features they don't use.
Sources & further reading
- Disruptive Technologies: Catching the Wave — Bower & Christensen, HBR, 1995The original Harvard Business Review article where Christensen introduced disruption theory.
- What Is Disruptive Innovation? — HBR, Christensen, Raynor & McDonald, 2015Christensen's own 20-year retrospective clarifying what disruption is and isn't.