A strategy model is a structured way of thinking about a class of problems. Each major startup strategy model was developed in response to a failure mode that its author observed repeatedly: companies building the wrong thing (Lean Startup), companies with incoherent business models (Business Model Canvas), companies growing too slowly in winner-take-all markets (Blitzscaling), companies solving the wrong job (JTBD), companies building on structurally wrong premises (Founder Kernel).
The implication is that no single model is complete. Each is optimised for the failure it was designed to prevent. Applying one model to a problem it was not designed to solve does not just fail to help — it actively misleads by framing the problem incorrectly.
The Major Models
Product risk. Founders building features customers do not want, spending capital on untested assumptions.
Build–Measure–Learn loop. Minimum Viable Products. Treating every release as an experiment with a falsifiable hypothesis.
Post-insight, pre-product-market fit. When the problem is known but the solution space is uncertain.
Does not evaluate whether the premise is structurally sound. Fast iteration on the wrong insight produces confident failure.
Multi-sided market design. How to structure a platform that connects producers and consumers in a way that generates network effects and defensibility.
Identifying which side of the market to subsidise, how to manage the chicken-and-egg problem, and how to design for interaction quality over volume.
When the marketplace or platform model is already selected. Helps design the architecture of the interaction layer.
Assumes the platform model is the right model. Does not evaluate the contrarian premise that would justify building a platform over a product in the first place.
Speed risk in winner-take-all markets. How to prioritise growth rate over efficiency when the cost of being second is catastrophic market exclusion.
Accepting operational chaos in exchange for market dominance. Growing faster than your unit economics justify — betting that scale will resolve the economics before capital runs out.
Post-product-market fit, in markets with strong network effects and clear winner-take-most dynamics. Not appropriate before fit is confirmed.
Dangerous when applied to markets that are not genuinely winner-take-all. Blitzscaling a non-network-effect business produces a large, capital-inefficient operation with no structural advantage.
Customer motivation risk. Founders building products optimised for demographic segments rather than for the specific progress customers are trying to make in their lives.
Reframing from "what product do customers want" to "what job are customers hiring a product to do." The unit of analysis is the desired outcome, not the product feature.
Customer discovery and product definition. Particularly useful for identifying non-obvious substitutes and understanding switching behaviour.
Describes why customers adopt products — not whether the business model that delivers those products is structurally defensible. A perfectly JTBD-aligned product can still be a commodity.
Premise risk. Founders pursuing structurally weak ideas — ideas without a contrarian truth, without a compounding mechanism, or without a defensible structural position.
Eight diagnostic blocks that force structural precision on the core insight: contrarian truth, problem kernel, structural change, product mechanism, distribution, defensibility, flywheel, and kernel hypothesis.
Pre-product. Before commitments are made. Designed to surface structural weakness before it becomes expensive to correct.
Does not guide execution, product iteration, or scaling. Once the kernel is validated, other frameworks apply.
When to Use Which Model
| Your current question | Reach for |
|---|---|
| Is the structural premise of my idea sound? | Founder Kernel — before anything else |
| What is the right product to build for this problem? | Jobs To Be Done for customer insight, then Lean Startup for iteration |
| How do I design a marketplace or platform? | Platform Strategy after the kernel is validated |
| Should I grow faster than my unit economics justify? | Blitzscaling — only after product-market fit and in a confirmed winner-take-all market |
| Is my business model coherent and complete? | Business Model Canvas as a completeness check — see also framework comparison |