Day 162: Your Buyer May Need Two Products, Not One Winner
A shortlist assumes the buyer must choose one winner.
But some buying problems are not solved by selecting the best product inside one category. The buyer needs several products to work alongside one another. Treating every adjacent brand as a competitor can hide the more useful commercial question:
What else must the buyer acquire or organise before our product can complete the job?
Economics gives us a simple distinction. A substitute can replace another product to some extent. Complements are often used together, so using one tends to enhance the use of the other.[1][2] That concept does not prove demand for any particular B2B combination. It does give marketing teams a better way to inspect the market around the buyer's whole job.
Start with the joint job
Consider an explicitly fictional research team assembling a system for turning customer interviews into reusable product evidence. No real products, partnerships, research results or answer-engine outputs are being described.
The team is considering three fictional products:
- ScribeOne records and transcribes customer interviews.
- ScribeTwo also records and transcribes customer interviews.
- EvidenceBase organises approved transcripts, research notes and themes for later retrieval.
ScribeOne and ScribeTwo are substitutes for this purchase. The buyer may compare their transcription accuracy, administration, pricing and handling of recordings, then select one.
EvidenceBase serves a different role. In this stipulated example, either transcription product can export into it using an existing supported connection. The transcription product creates a usable record of the conversation; the repository helps the team organise that material for later analysis. Neither role replaces the other in the buyer's intended workflow.
The combined job is not “buy transcription software”. It is “turn interviews into evidence the product team can find and use”.
That changes the market-design sketch:
| Buyer requirement | Product role | Market relationship |
|---|---|---|
| Capture and transcribe an interview | ScribeOne or ScribeTwo | Substitutes for this decision |
| Organise approved material for later analysis | EvidenceBase | Complement in this stipulated workflow |
| Move material between the selected tools | Existing supported connection | A condition of the example, not inferred compatibility |
A complement can still become a competitor
These labels belong to a buyer job, not permanently to a company.
If EvidenceBase later includes sufficient native recording and transcription for this team's needs, it could compete with ScribeOne and ScribeTwo. If ScribeOne expands into a full research repository, it could compete with EvidenceBase. For another buyer, a manual process may replace one product entirely.
“Complement” therefore does not mean “automatic partner”, and it does not imply equal value, permanent alignment or technical compatibility. It means the products are used together in the defined scenario. The relationship must be tested against the job, buyer and current offer rather than assigned from category labels.
Ask combination questions during answer-led research
If a research brief asks only for the best platform, leading vendor, alternative to, or product A versus product B, it examines substitution rather than the whole job. Those questions matter when the buyer is choosing between rival ways to perform the same role.
Add a second family:
- What must work alongside this purchase for the wider job to succeed?
- Which part of the workflow remains unsolved after the buyer chooses this category?
- Where does responsibility pass between the two products?
- Which conditions make the combination unsuitable?
Google says AI Mode can support nuanced questions and complex comparisons, and that AI Mode and AI Overviews may issue related searches across subtopics while developing a response.[3] That supports including combination questions in a Google-focused discovery brief. It does not show that Google rewards integrations, that co-mentions reveal demand, or that the fictional pairing above would appear.
The useful output is not a dashboard of adjacent brands. It is a bounded description of the joint job, each product's role and the boundary between them.
Make one commercial choice
For the fictional transcription provider, the next commission is not another “best transcription tools” comparison. It is one joint-use brief: how a product team moves from recorded interview to approved, reusable evidence when it uses a separate research repository.
The brief should explain the transcription product's role, the repository's role, the supported hand-off stipulated for the chosen pair and the point at which each provider's responsibility ends. Before publication, the company would need to verify every product and interoperability claim with the relevant owners.
The same sketch may justify a partner conversation instead of content. It may also show that the adjacent product creates no worthwhile joint opportunity. Partnerships are a decision to investigate, not the conclusion built into the model.
A category view asks who can replace you. A market view also asks what makes your product more useful when the buyer assembles the whole solution.
Sources
[1] OpenStax, Principles of Economics 3e, “3.2 Shifts in Demand and Supply for Goods and Services”: https://openstax.org/books/principles-economics-3e/pages/3-2-shifts-in-demand-and-supply-for-goods-and-services
[2] OpenStax, Principles of Economics 3e, “Key Terms”: https://openstax.org/books/principles-economics-3e/pages/3-key-terms
[3] Google Search Central, “AI features and your website”: https://developers.google.com/search/docs/appearance/ai-features