Problem
Scenario
You're advising an engineering organization that needs a new shared service capability to support product growth. The team could build it internally, adopt a third party platform, or use a hybrid path, and leadership wants a clear decision framework that balances speed, control, cost, and long term differentiation.
Question
How do you decide whether to build or buy a new service capability?
What This Tests
- Ability to separate strategic differentiation from commodity infrastructure
- Judgment on build, buy, and hybrid trade-offs
- Use of competitive analysis and vendor market maturity
- Understanding of scale economics and long-term cost structure
- Explicit risk assessment, including lock-in and delivery risk
Practicing as: Product Manager interview at HarnhamHi, I'll play your Harnham interviewer for the Product Manager role. Candidates describe these interviews as mixed and moderately difficult, so expect me to be professional and fair. Take your time with the question above and answer like we're in the room.
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