A nurse manager’s span of control includes both the people supervised and the responsibilities assigned. A headcount is a useful starting point, but it does not describe every demand on that person's time.
AONL's 2024 span-of-control paper advises considering the care setting, manager experience, staff needs and available support. It does not identify one universally appropriate number of direct reports. AONL paper
Count people and capacity separately
Headcount counts individuals; full-time equivalent staffing describes a quantity of work time. Keep both measures visible when discussing a manager's responsibilities.
For a simple hypothetical comparison, ten people working half of a full-time schedule represent ten individual staff relationships and five full-time equivalents. Their schedules may total the same hours as five full-time employees, but the number of individuals differs.
Do not convert one measure into the other without explaining the calculation. Ask which population is included, such as permanent employees, temporary staff or people with another reporting arrangement.
Describe the work attached to the role
Create a practical inventory of the manager's responsibilities. Include activities that do not appear in the unit's patient count: recruitment, orientation oversight, staff development, performance discussions and improvement work.
Record the number of locations and shifts the manager must reach. Identify responsibilities shared with other leaders and those for which the manager remains the only named contact.
The aim is to make the work visible, not to assign an identical time allowance to every conversation or decision.
Check the support that actually exists
AONL's public summary emphasizes that suitable span depends partly on available resources and the workload of direct reports. AONL summary
Ask which support roles are filled and available. A budgeted educator or assistant manager vacancy does not provide the same help as an active colleague.
Clarify who handles scheduling administration, routine data preparation and issues arising outside the manager's usual working hours. Avoid counting the same person's time as fully available to several units.
Make a specific proposal
If the current arrangement appears unworkable, identify the problem the proposed change would address. Examples include delayed staff check-ins, repeated gaps in orientation oversight or insufficient coverage during leave.
Compare options such as redistributing responsibilities, adding support or changing reporting lines. State what each option requires and which work would move.
A financial estimate should distinguish observed costs from assumptions about future savings. Do not present an expected reduction in turnover as guaranteed.
Reassess after changes
Choose a review date and examine whether the intended support became available. Include the manager's perspective and staff experience of access to leadership.
A smaller reporting group alone does not establish that the work improved. Review what changed in responsibilities, coverage and follow-through.
Include the support available from charge nurses when comparing two managers’ spans. A headcount alone misses that difference.
Related
the charge nurse role · succession planning · nurse turnover.
Sources
- Span of Control Subcommittee paper (accessed 2026-09-17) — AONL Workforce Committee, 2024.
- AONL Releases Span of Control White Paper (accessed 2026-09-17) — AONL.