Futures · Diagnose

Disruption threat test

Christensen's test, applied narrowly: is a new entrant taking your least profitable customers or serving people who were not buying, and does responding need a separate unit.

The printable canvas and the handoff into Claude Code are part of a paid plan. See what a plan includes. It needs the Claude desktop app on this machine, and your team and the prompt library already installed in that project — we cannot see your disk, so open it there.

Stage
01 Diagnose
Works at
Corporate, Business
Maturity
Scaling → Large organisation
Time
Half a day

What it is

Clayton Christensen's disruption theory, used narrowly rather than as a general-purpose label for any new competitor. Three specific questions decide whether a threat is genuinely disruptive: is the entrant taking the incumbent's least profitable, most over-served customers, or serving people who were not buying the category at all; is its rate of improvement steeper than customers' requirements are rising; and would responding require a separate unit because the incumbent's own economics and incentives will otherwise refuse the necessary trade-offs.

Low-end entry
The entrant targets the incumbent's least profitable, most over-served customers with a simpler, cheaper offer those customers are happy to accept.
New-market entry
The entrant serves people who were not consuming the category at all — competing against non-consumption rather than against the incumbent directly.
Sustaining competition, not disruption
The entrant competes head-on for the incumbent's best customers with a straightforwardly better version of the same offer. Real competition, and not what this test is built to find — misapplying the disruption label here produces the wrong response.
Trajectory of improvement
Whether the entrant's rate of improvement is steeper than the rate at which customer requirements are rising. If the trajectories will cross, the entrant eventually serves the incumbent's core customers too.
The separate-unit test
Whether responding on the entrant's terms would require cost, pricing or channel choices the incumbent's existing business would refuse — in which case a separate, differently incentivised unit is the only credible response.
The mistake people makeApplying 'disruption' to any new competitor with lower prices, which misdiagnoses ordinary sustaining competition as disruption and produces a separate-unit response the situation does not actually call for.
What it’s forA new, smaller entrant is gaining ground and the board wants to know whether it is a genuine disruptive threat or an ordinary competitive one.
What it’s not forThe entrant is competing directly for the same customers with a better version of the same offer. That is ordinary competition, and this test will correctly say so rather than manufacture a disruption story.

How you run it

  1. Identify exactly who the entrant is winningWhich specific customer segment or use case — the incumbent's least profitable, over-served customers, people not previously buying, or the incumbent's best customers directly.
  2. Classify low-end, new-market or sustainingOnly the first two are disruption in Christensen's sense. Sustaining competition against the incumbent's core customers is ordinary competition, not disruption.
  3. Track the entrant's trajectory of improvementOver the period observed so far, is its rate of improvement steeper than customer requirements are rising. If the lines will cross, the threat eventually reaches the core.
  4. Test what responding on the entrant's terms would requireCost, pricing or channel choices the incumbent's existing business, incentives and cost structure would refuse to make.
  5. State whether a separate unit is genuinely requiredOnly where the existing business's own economics would block the necessary response. Not a default recommendation — a specific, tested conclusion.

The prompt

Two ways to run it

Run this tool in your own Claude

The short prompt starts your partner against the library on your disk. The long one carries everything with it and needs nothing installed.

🔒 Prompt locked

Everything above is free — what this tool is, what it is for, what it is not for, and how to run it as a workshop. Three tool prompts a month are free with an account; beyond three, and for the printable canvas, it is the paid part.

See plans — from £19 a month