The rota underneath
The schedule decides how much any single absence hurts, months before it happens.
The Rota Decided This Weeks Ago
How much a single absence hurts was settled when the schedule was built. By six forty the outcome is largely determined and the hour is just discovering it.
Slack, and Why It Was Removed
Margin in a rota looks like waste on a spreadsheet and functions as the thing that absorbs absence.
Skill Mix on the Roster
Scheduling by name fills the slots. Scheduling by capability decides whether the shift survives losing one of them.
Publishing It Late
A rota published four days ahead produces absences that a rota published four weeks ahead does not. The connection is direct and it is almost never drawn.
Patterns That Produce Their Own Absence
Some shift patterns generate the absence that then has to be covered. They are identifiable from the rota alone, before anybody has rung in.
Everybody Wants the Same Fortnight
Planned leave is the one absence you know about in advance, and it is routinely approved into a shape that guarantees the summer will be covered by agency.
A Rota Built to Lose One Person
What changes when resilience is a constraint in the schedule rather than a hope. Six properties, all testable before the week is published.