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THE McKINSEY WAY

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26 The McKinsey Mind<br />

step, you need to figure out which are the top-line issues, the issues<br />

that have to be true for your hypothesis to be true. After a bit of<br />

brainstorming, you isolate three questions that address the validity<br />

of your hypothesis: Will shortening the curing process reduce our<br />

costs? Can we, as an organization, implement the necessary<br />

changes? If we implement this change, can we maintain product<br />

quality? Put these issues one level below your hypothesis, as shown<br />

in Figure 1-2.<br />

Unfortunately, the answer to each of these questions lies in several<br />

more questions. You will have to answer those in turn before<br />

you can come up with a final yes or no. As you take each question<br />

down one or more levels, your analysis road map will begin to take<br />

shape. Let’s drill down on one of these issues and see where it<br />

leads us.<br />

Subissue: Will it<br />

reduce our costs?<br />

Issue: Can we<br />

increase thrum-mat<br />

profitability with<br />

the new production<br />

process?<br />

Subissue: Can our<br />

organization<br />

implement the<br />

necessary changes?<br />

Subissue: Can we<br />

maintain product<br />

quality while<br />

implementing the<br />

process?<br />

Figure 1-2. Issue Tree for Acme Widgets

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