Cracked It! How to Solve Big Problems and Sell Solutions Like Top Strategy Consultants (Bernard Garrette, 2018)


  • 4S method: State - define problem, empathise; Structure - build hypothesis pyramid, build issue tree, generate concept; Solve - perform analysis, prototype and test potential solutions; Sell - design storyline, produce and deliver recommendation report
  • A problem well posed is half-solved
  • TOSCA (problem-solving): Trouble, Owner, Success, Constraint, Actors
  • Pyramid & decision tree - MECE - Mutually Exclusive, Collectively Exhaustive
  • Have multiple models as human psychology is such that you will torture reality to fit your model
  • Always test your ideas: choose audience and get feedback
  • Degrees of analysis: existing data, easy-to-find numbers, non-numerical facts, fact-based analysis, analysis based on assumptions, internal plan & forecast, expert input, judgement calls
  • Sound assumptions: get physical to be realistic, check assumptions to be consistent, benchmark your assumption, test sensitivities
  • SCAMPER - Substitute, Combine, Adapt, Modify/Magnify, Put to other uses, Eliminate, Reverse/Rearrange


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