Most leadership teams treat an open role as a cost saved. On the ledger it looks that way: a salary line goes unspent for a quarter. In practice, an unfilled seat is one of the most expensive line items a business carries, and it rarely shows up anywhere a CFO would look for it.
Where the margin actually goes
The first leak is displaced work. When a role sits empty, its responsibilities do not disappear — they are absorbed by colleagues who are already fully allocated. Higher-paid people end up doing lower-leverage work, and the projects they were hired to drive slip quietly to the right.
The second leak is decision latency. Vacant leadership seats slow down approvals, hiring, and prioritisation across an entire function. A single unfilled director role can add weeks to every decision that would have crossed that desk.
The third leak is attrition risk. Teams covering for a missing colleague burn out on a predictable curve. The vacancy that seemed cheap in month one becomes two vacancies by month five.
Model it before you defer it
A simple model gets you most of the way there: estimate the revenue or output attributable to the role, divide by working days, and multiply by expected days-to-fill. Add a conservative allowance for the productivity drag on the covering team — ten to fifteen per cent of their loaded cost is a defensible starting point.
Run that calculation once and the argument for moving faster on a search usually makes itself. The question stops being whether you can afford to hire and becomes how long you can afford not to.
What to do differently
Shorten the front of the process, not the back. Most searches lose weeks before the first candidate is ever seen — in scoping, in scheduling, in aligning stakeholders on what "good" looks like. Fixing that costs nothing and typically returns more time than any late-stage acceleration.