Hi Linnan,

The most important thing here is that you have a sound structure. After that, the specific ideas are less importnat (though they have to be revelant).

How to Structure In General

 I'm going to take a step back and answer the most important question: How do I use frameworks in a case?

If there's anything to remember in this process, is that cases don't exist just because. They have come about because of a real need to simulate the world you will be in when you are hopefully hired. As such, remember that they are a simplified version of what we do, and they test you in those areas.

As such, remember that a framework is a guide, not a mandate. In the real-world, we do not go into a client and say "right, we have a framework that says we need to look at x, y, and z and that's exactly what we're going to do". Rather, we come in with a view, a hypothesis, a plan of attack. The moment this view is created, it's wrong! Same with your framework. The point is that it gives us and you a starting point. We can say "right, part 1 of framework is around this. Let's dig around and see if it helps us get to the answer". If it does, great, we go further (but specific elements of it will certainly be wrong). If it doesn't, we move on.

So, in summary, learn your frameworks, use the ones you like, add/remove to them if the specific case calls for it, and always be prepared to be wrong. Focus rather on having a view, refering back to the initial view to see what is still there and where you need to dive into next to solve the problem.

Hi Linnan,

I quickly browsed the case and saw that this is the 1st question. In McK-style case, the 1st question is usually the prompt for your framework/structure. Your answers are good but they dive into the details too fast so the high-level view is missing.

To answer this question, I suggest you:

- Clarify the client's goal

- Propose your structure/framework

- For each branch of your structure, pick up one or two points as your hypothesis and state them to the interviewer

For Mck style interview, even prompts can come out in very creative ways, the general case flow is not that much different. Happy to discuss more if this is unclear in any way!