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Anonymous A
on Jan 10, 2020
Global
I want to receive updates regarding this question via email.

Why do the case examples not use Issue Trees often?

Hey this is a super basic structure question, but just went through all the material on this site instructing that the first step you should create an Issue Tree structure. Then I went through the case examples and see that this is not done often in the suggested answers? Am I missing something? Any help would be much appreciated.

Thanks!

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Top answer
Vlad
Coach
on Jan 10, 2020
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School

Hi,

There are many ways to structure a case, not just an issue tree:

  • Mathematical (issue tree)
  • Workstreams (Buckets with bullet points)
  • Value chain / process / customer journey, etc
  • Segmentations
  • Frameworks
  • Project steps
  • Mix of them

You should be flexible in your approaches. Every time you build a certain structure you should take into account:

  • The objective of the case
  • Context
  • Type of the case

Best!

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1 comment
Anonymous A
on Jan 10, 2020
Thank you for your insights, most helpful!
Luca
Coach
on Jan 10, 2020
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached

Hello, 

In the case examples here on Preplounge the issue tree is always replaced by "Diagram 1 - Case structure". Anyway I agree with you that a proper framework is missing and I always suggest my candidates to write down a real Issue Tree structure. During real interviews a structure like the one proposed in the examples is not enough.

If you are struggling with frameworks and you want to discuss them, feel free to write me.

Best,
Luca

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Clara
Coach
edited on Jan 10, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Agree!

This is a key part of 95% of the interviews. I encourage you to practice it always.

Here is sometimes substituted by  "Diagram 1 - Case structure", but it´s not the same. 

Hope it helps!

Cheers,

Clara

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2 comments
Anonymous A
on Jan 10, 2020
Thanks Clara!
Clara
Coach
on Jan 11, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut
:)
Antonello
Coach
on Jan 10, 2020
McKinsey | NASA | top 10 FT MBA professor for consulting interviews | 6+ years of coaching

Hi,
unfortunately, most of the cases do not show an issue tree, probably because difficult to draw in a document. I recommend to approach every case with an issue tree and to show it to the interviewer. It is a powerful tool largely used by consultants in brainstorming sessions and much appreciated if correctly used during your interview.

Best,
Antonello

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1 comment
Anonymous
on Jan 10, 2020
Thanks Antonello!
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