Evaluate channels alongside your product, market and business model.
How can Brian Balfour’s Four Fits inform a channel investment? We distinguish the framework’s context from Hornpiper’s application advice.
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Four Fits examines relationships between product, market, channel and business model. Hornpiper uses it to frame decision questions, not as a guarantee or a mandatory recipe for every company.
The source proposition and its context
Balfour considers product-market, product-channel, channel-model and model-market fit together. The Reforge article targets product companies reaching large scale at venture speed. That context should not be transferred unchanged to every growth decision in a smaller business.
Hornpiper’s interpretation: make the investment testable
The useful output is not a fit score. It is a decision about which investment assumption to investigate. We do not prioritize only the apparently weakest area. We also consider cost, reversibility, available information and the team’s capacity to act.
Example: more enquiries or a different sales process?
Imagine a campaign generates many enquiries, but the sales team responds late. Blaming low sales on the channel would be premature. We could first compare response times and sales progression across similar enquiries. That comparison informs a channel decision; it does not establish causality by itself.
Illustrative decision example, not a client case or a report of results.
What belongs in the decision record?
- The option being considered and a credible alternative
- Expected commercial contribution alongside delivery and selling costs
- Missing information and a plan to obtain it
- Who decides whether to continue, change or stop
A one-off service and a subscription product need not share the same measures. The framework does not replace the business model.