Change capacity lives in the middle layer. It is finite, measurable, and usually already spent.
The layer every programme depends on and most programmes exhaust. A capacity model.
Change capacity lives in the middle layer. It is finite, measurable, and usually already spent.
Every transformation plan assumes the middle layer will carry it: translate the strategy, run the workshops, absorb the exceptions, keep the operation running while changing it. Across 47 programmes we measured what that layer could actually carry. The median middle manager in the sample was already committed to 118% of available capacity before the programme began. The plan was drawing on an account that was already overdrawn.
The study publishes a capacity model that treats middle-management attention the way an engineer treats load, with rated limits, current utilisation, and headroom that has to exist before any new load is added on top of it. Programmes that measured this headroom and sequenced against it delivered at more than twice the rate of those that assumed it. A rated limit for human attention is a useful fiction rather than a physical constant, and the instrument counts committed time rather than the effort any particular commitment actually costs the person carrying it. We publish it anyway, because a rough number changes a plan and a vague worry does not. The model became the middle-layer component of the Transformation Load Map.
Median pre-programme utilisation of middle-management capacity. The layer was overdrawn before the transformation began.
Higher value delivery in programmes that measured middle-layer headroom and sequenced against it.
Median share of middle-management time consumed by reporting on change rather than making it.
Median time to visible attrition in the middle layer once sustained utilisation passed 130%.
Measure middle-layer utilisation before approving the programme plan. If the layer is above 100%, the plan is fiction until something is stopped.
Cut the reporting tax first. Reclaiming the 31% costs nothing and is usually the cheapest capacity in the building. The cash cost is nil and the political cost is not, because most of that reporting exists because somebody senior asked for it and nobody has yet told them it can stop.
Sequence change into the layer at the rate headroom actually exists. The Load Map turns that rate into a number instead of a judgement call.
Watch sustained utilisation above 130% as an attrition leading indicator. In this sample it gave six months’ warning.
Markham Institute, Middle management as change capacity, MKM-R-2025-009, v1.0 (November 2025). Citation permitted with attribution.