The hidden cost of decisions made at the end of a long week
A Friday approval queue deserves a scheduling review when material choices repeatedly arrive after days of accumulated demand.
The performance question
The issue is not that Friday is intrinsically unsafe. It is whether your timetable leaves a complex approval until the reviewer has little time to read, challenge or recover. A purchase approved quickly can later consume much more time in clarification and correction.
What the evidence supports
HSE links fatigue with reduced information processing, memory lapses and errors. It identifies working time, workload and recovery as relevant factors. This does not establish a universal weekday effect or prove that moving every decision to Monday improves outcomes.[1]
A practical approach
Review the last month of material approvals with their actual submission times. Move predictable investment and contract reviews earlier in the cycle. Set a paper submission deadline and a deputy route for genuine late exceptions. Keep urgent safety decisions available at all times, with appropriate verification.
How to review progress
Compare late submissions, clarification requests and reopened approvals before and after the change. Record whether delays merely moved to another day or affected customers. If the queue persists, examine upstream planning and approval authority rather than blaming the final reviewer.
Sources and references
- Human factors: Fatigue Opens in a new tab
Health and Safety Executive
Why fatigue matters and key principles for managing working hours