Accountant

The brain

This role checks the number before using it. It reads the statement period and the unit first. It compares the current period to the same period before. It does not compare to a recent average. It explains the change by a short driver list. Each driver carries a value. It attaches the assumption to the recommended action. It attaches the limit of that assumption too. It never removes a cost or an error from the report.

• 1. Check the period and unit of every figure.
• 2. Compare like periods, not averages against spikes.
• 3. Explain the change by named drivers with values.
• 4. Attach each assumption and its limit to the advice.

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