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MECE structures market entry/product launch ect

Hi everyone,

I’m currently struggling with structuring in case interviews, especially for questions like:
“Should we enter this market?”

A typical structure that seems logical to me is:

  1. Is the market attractive? (customers, demand, willingness to pay, growth, competitors)
  2. Do we have the capabilities/resources to compete?
  3. Is the opportunity financially viable / profitable?

However, I keep running into a conceptual issue with this structure.

When analyzing market attractiveness, I look at factors such as market size, growth, customer demand, and pricing dynamics to understand how attractive the market is overall. But at the same time, these exact outputs essentially determine the revenue potential of the business.

In other words:
The conclusions from the market analysis (e.g. how big the market is, how strong demand is, what price levels are realistic) directly shape the revenues that I later use in the financial analysis.

This is where I get stuck:
If the revenue potential is fundamentally derived from the market attractiveness, doesn’t that mean that the financials bucket is not really independent?

It feels like:

  • The market bucket already defines the “ceiling” of what is possible,
  • And the financials bucket is just a transformation of that into revenues and profit.

So my questions are:

  • How can this still be considered MECE if one bucket essentially determines the outcome of another?
  • Is MECE in case interviews about separating types of questions (e.g. attractiveness vs. profitability), rather than ensuring independence of results?
  • Or is there a better way to structure such cases to avoid this dependency?

I feel like I’m missing a fundamental principle here, because this issue comes up repeatedly across different case types.

Would really appreciate any guidance.

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Profile picture of Franco
Franco
Coach
16 min ago
Ex BCG Principal & Global Interviewer (10+ Years) | 100+ MBB Offers | 95% Success Rate

Your structure is actually good, don't overthink it.

There are always multiple valid ways to structure a market entry case, but what you've proposed is logical and MECE. The key is how you think about MECE itself.

The buckets don't need to be independent, they just need to be mutually exclusive and collectively exhaustive. What you're describing (outputs of one bucket feeding the next) is not a flaw, it's just how structured thinking works in practice. You're essentially running a sequential process: three clearly separated phases where each builds on the previous. That's still MECE. It would only break down if the same question appeared in two buckets simultaneously which it doesn't in your structure.

So the apparent overlap you're sensing isn't a structural problem. Market attractiveness tells you what the opportunity looks like from the outside. The financial viability bucket then asks what it looks like for us specifically, factoring in our cost base, required investment, margin expectations, and payback period. Same inputs, very different questions.

One thing I'd add to make your framework even stronger: a dedicated risks bucket. Right now your structure answers "should we enter?" but doesn't explicitly pressure-test the downside. Adding risks would make it more robust and more consultant-like. For example: market risks, competitive risks, execution risks, opportunity cost risks.

With that addition, your framework covers attractiveness, capability, financials, and risks and it will look very solid in a room.

If you want to discuss further feel free to DM me!
Best,
Franco