9-box grid
The 9-box grid is a talent review tool that plots employees on a 3×3 matrix of performance against potential to support calibration and succession decisions.
The 9-box grid plots employees on a three-by-three matrix — typically performance on one axis and potential on the other — producing nine cells that range from low performance/low potential to high performance/high potential. It gives leaders a shared visual language for talent calibration.
The framework was popularized by McKinsey & Company in work with General Electric in the 1970s and remains a staple of talent reviews. It is most useful as a conversation starter for calibration, not as a final verdict on a person.
The grid's value is in the disagreements it surfaces. When two leaders place the same person in different cells, the conversation that follows — what evidence, whose standards, which axis — is the calibration working as intended. Grids filled out alone and never debated are just opinion in a costume.
Its known failure modes are worth designing against: potential ratings that quietly measure polish or likeness to the rater, placements that never change because nobody revisits them, and the top-right cell being treated as a promotion promise rather than a development signal. Clear criteria per axis and a revisit cadence keep the tool honest.
Frequently asked questions
- What do the two axes of a 9-box grid measure?
- The horizontal axis measures performance — how well someone delivers in their current role — and the vertical axis measures potential, meaning their capacity to grow into bigger or different roles. Each axis is split into low, medium, and high, which produces the nine cells. The grid is only as good as the definitions behind those axes: if raters have no shared criteria for what counts as high potential, placements measure the rater more than the person.
- What does the top-right box in a 9-box grid mean?
- The top-right cell holds people rated high on both performance and potential — often called stars or future leaders. It is a development signal, not a promotion promise: treating it as a guaranteed next step creates entitlement when roles do not open and quiet resentment when placements change. The useful question for the top-right cell is what assignment would stretch this person next, not what title they should get.
- Is the 9-box grid outdated?
- The tool attracts fair criticism — potential ratings can hide bias, placements go stale, and a single meeting cannot capture a person — but most organizations that drop the grid end up recreating something like it, because leaders still need a shared way to compare talent. The fix is discipline rather than replacement: written criteria per axis, calibration debate where raters disagree, and a revisit cadence so placements reflect current evidence.
- How often should 9-box placements be updated?
- At minimum once a year, and ideally at every talent review — twice a year for most organizations. A placement that has not moved in two years usually means nobody has looked at it, not that the person has stopped developing. Fresh placements matter most for succession decisions, because a bench built on stale grids inherits their staleness.
- What is the difference between a 9-box grid and a succession plan?
- The 9-box is a calibration snapshot of where people stand today on performance and potential; a succession plan is the working document for a specific role, with a scored candidate slate, readiness windows, and development actions. The grid feeds the plan — top-right and high-potential placements are natural succession candidates — but a grid alone names no successors and closes no gaps.
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