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Succession

The nine-box grid that actually works

Most nine-box exercises measure opinion, not potential. A defensible grid starts with the axes.

Prof. Richard SloanProf. Richard Sloan12 May 2026 · 6 min

The nine-box grid is the most widely used — and most widely abused — instrument in succession planning. Plotting performance against potential is sound; doing it from memory in a calibration meeting is not.

A defensible grid anchors each axis in measured evidence: validated potential indicators on one side, documented performance on the other. The conversation then audits the data, rather than inventing it.


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