# Lean Business Planning
**Tim Berry**

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_The plan is not the deliverable. The revision cycle is._
Berry uses a dribbling analogy that sticks: in football, you manage the ball at your feet while simultaneously reading the pitch, tracking opponents, and developing plays. Dribbling is a means to an end, not the goal. Planning is like that too. Most people treat business planning as a document, something you write once for investors or lenders and then file away. Berry argues this gets it completely backwards. The plan is just the tool that makes commitments visible so you can see when reality diverges from expectation. The value lives in the loop: plan, execute, track, review, revise, repeat. A plan that never gets revised was never really used.
Accounting goes backward in time. Planning goes forward. You can't manage a business by staring at historical financials, but that's exactly what happens when planning is treated as a one-off event. The company produces a document in January, moves on, and doesn't revisit it until the board asks why actuals missed budget. By then, the gap between plan and reality is too wide to diagnose. Lean planning closes that gap by making revision the point, not an admission of failure.
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**Strategy, in Berry's framing, is the discipline of saying no.** He reaches for the Michelangelo principle: the art is what you chip off the block, not what you leave in. Strategy means carving away everything that isn't David. Most companies fail not from lack of ideas but from lack of focus. Serving everyone means having no strategy. The questions are blunt: who specifically are we serving, what problem do we solve for them, what makes us different (not better, different), and what are we deliberately not doing? These are [[Real choices]], commitments that close doors, not preferences stated on a slide.
Tactics follow strategy as a simple list, not an elaborate document. Pricing approach, marketing channel, product development priorities. Berry is insistent that this stays lean: bullet points, not polished prose. The moment planning becomes a writing exercise it stops being a thinking exercise. The audience is the management team, not an investor who needs convincing.
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**Milestones are the forcing function.** A good milestone is binary: done or not done, no "80% complete." It's time-bound, assigned to one person (not "the team"), and verifiable. The binary quality matters most. "80% complete" is the planning equivalent of a comfortable lie. It lets everyone feel progress without anyone committing to a finish line. A milestone that can be fudged isn't a milestone, it's an aspiration.
Forecasts serve the same function through a different mechanism. They're not about being right. They're tools for learning. Traditional forecasting fails because people treat forecasts as targets and then manipulate numbers to hit them. Lean forecasting works because tracking actuals against forecast reveals what you don't understand, and monthly revision means the forecast improves as you learn. This is the discipline behind good [[Estimates]]: not precision, but honesty about what you know and what you're guessing. The sales forecast alone, tracked monthly against actuals with corrections, already qualifies as business planning. Everything else is refinement.
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