Strategy

7 min read

The three-line strategy: a test for any plan

If a strategy cannot be written in three lines, it is not a strategy yet. Here is the test we use on every plan we are shown.

Nora Aldermere

Founding partner

Written by

Nora Aldermere

Founding partner

Most plans we read run to forty pages. Most of them contain no decision. A strategy is a choice about where you will play and what you will not do, and a choice fits in three lines.

Line one: who you serve

Name the customer in a way that would let a stranger tell whether they are one. “Small businesses” fails. “Independent grocers with three to six shops” passes.

Line two: what you do for them

Say the one thing you do better than the alternatives, and say what they would otherwise have to do instead.

Line three: what you will not do

This is the line people skip, and it is the one that matters. A plan with no exclusions has not chosen anything.

How to use it

Write the three lines before the next planning meeting and hand them out. If the room cannot agree on them in twenty minutes, you have found the real work.

The Aldermere Letter

One essay a month, short enough to read on the train.

Want this applied to your business?

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The Aldermere Letter

One essay a month on running a business well. Short enough to read on the train.

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© 2026 Aldermere Advisory Ltd, Bristol

© 2026 Aldermere Advisory Ltd, Bristol

Independent since 2011 · Fixed fees · No lock-in

Independent since 2011 · Fixed fees · No lock-in

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