Supervisor span of control and exposure model

Every home a field supervisor carries past the span their own top performers prove they can hold well, traced to the callback, the schedule slip and the missed catch it produces. Fix the load before it becomes a warranty file.

$0.8M

Reference-scale value

Data sets in the model

7 wks

Build and deploy

Derived

Evidence grade

A wide portfolio looks fine until the callback lands

A supervisor's span is visible on a headcount report nobody reads against schedule data. Nobody joins the two until a home closes with a defect a right-sized portfolio would have caught at the pre-close walk — so the cost of thin coverage shows up as a warranty file, not a staffing conversation.

Every home compared against what the same builder's own top-quartile supervisors demonstrably carry without the quality dropping. The gap is traced to a driver — a missed catch, an extra callback, a coordination delay — so ops can rebalance a portfolio this week, not discover the pattern at the annual warranty review.

$442,000 · addressable

Missed pre-close catches

Items the right-sized cohort's supervisors catch at the QA walk that the over-span cohort's don't. The largest single driver.

$163,800 · addressable

Extra callback trips

Post-close service calls, traced to the home and the supervisor who carried it.

$122,200 · addressable

Supervisor-attributable schedule carry

The coordination-caused share of extra cycle days. The portfolio-load control reaches this directly.

$73,320 · not addressable here

Inspection-queue schedule carry

Priced separately in the inspection and approval lag model. Not double-claimed here.

Want more detail?

The rest of this model — the data sets it runs on, the cause split, the working behind the reference figure and a sample output — goes out by email. Two fields, nothing else.