A vacancy opens and the familiar sequence begins: write an advert, pay for reach, collect hundreds of applications and hope the right person appears.

Meanwhile, somebody already in the organisation may understand the customers, systems and daily pressure well enough to grow into the role. Looking inside first does not mean automatically promoting the longest-serving employee. It means testing nearby capability before assuming it must be bought from outside.

Define the work before naming a successor

Start with the same question you would ask in an external search: what must this person deliver in the first six to twelve months?

Write four to six outcomes, the evidence needed and the constraints of the role. Separate requirements into:

  • Essential on day one.
  • Learnable within an agreed period.
  • Useful but not decisive.
  • Habitual requirements that no longer serve the work.

Do this before discussing favourite employees. Otherwise the role will quietly be rewritten around a person, or a strong person will be rejected because they do not resemble the previous incumbent.

Check whether the vacancy itself needs to be filled. Work may have changed, moved to another team or become suitable for redesign. Internal recruitment should not preserve an unnecessary job description.

Map capability close to the problem

Do not search only for matching job titles. Look for employees who already handle parts of the outcome.

A customer-service adviser may understand recurring complaints well enough to move into quality assurance. A warehouse administrator who has improved stock records may have evidence relevant to inventory control. A team leader may not be the strongest future manager if another employee already coaches colleagues, plans work and handles difficult decisions.

Ask managers for evidence, but do not rely entirely on nominations. Managers tend to remember visible employees and may protect strong performers from moving because losing them creates a gap.

Use several signals:

  • Completed projects and measurable improvements.
  • Skills developed through formal or workplace learning.
  • Temporary duties, acting roles and cross-team work.
  • Performance against relevant outcomes.
  • Employee career interests.
  • Readiness gaps that can realistically be closed.

Treat this map as a starting point, not a secret ranking.

Invite interest through a fair process

An informal tap on the shoulder is quick, but it excludes people who were not part of the manager’s network. Publish the opportunity internally through channels employees can actually access.

State the outcomes, selection stages, salary range where possible, work arrangement and closing date. Explain whether external candidates will also be considered. Give employees a confidential route to express interest if telling their current manager first would expose them to pressure.

Do not promise that an internal application is a promotion. Make clear that it is a fair opportunity to be assessed. Employees should also understand what happens if they are not selected and whether feedback will be available.

Accessibility matters internally too. A process is not open merely because an email was sent. Consider shift workers, employees without regular computer access and people who may need a reasonable accommodation to participate.

Use one scorecard for comparable evidence

Internal knowledge can be valuable, but familiarity can distort judgement. “We know her” is neither a positive nor negative assessment.

Use a defined scorecard and collect job-related evidence. Internal candidates may draw on actual work examples; external candidates may bring evidence from other environments. The examples will differ, but the standard should remain connected to the same outcomes.

Avoid turning an internal interview into a performance review. Questions about unrelated history or workplace relationships can crowd out the evidence required for the new role.

Where you use a work sample, keep it proportionate and provide comparable instructions, time and support. Record the reasons for the decision. This protects the candidate and helps the organisation explain why demonstrated capability, development potential or external expertise mattered.

Employment equity and unfair-discrimination duties apply to recruitment and promotion practices. A familiar internal process still needs relevant, consistent criteria.

Make movement possible after selection

An internal appointment can fail before it begins because nobody plans the release.

Agree:

  • The start date in the new role.
  • Which old responsibilities must be transferred.
  • Who owns the backfill decision.
  • What training or coaching will close readiness gaps.
  • How pay and conditions change.
  • What success looks like in the first month and first quarter.

Do not make the employee perform two full jobs indefinitely. A staged handover may be necessary, but it needs an end date and named owners.

The previous manager should provide evidence and transition support, not exercise a personal veto. If one person’s movement would collapse a team, the organisation has identified a succession problem, not a reason to freeze that person’s career.

Tell unsuccessful internal candidates promptly. Give specific, job-related feedback and identify realistic development where it exists. Do not invent a future promotion to soften the answer.

Know when the outside market is still needed

Looking inside is a test, not a rule. An external search may be necessary when:

  • The organisation lacks a critical capability.
  • A fresh perspective is important to the outcome.
  • Internal candidates would need more development than the timeline allows.
  • Growth creates more roles than the current workforce can fill.
  • A fair comparison would help challenge assumptions.
  • Employment-equity goals and the relevant plan require broader action.

You can run internal and external searches together if the position and communication are clear. Do not advertise publicly after secretly deciding that only an internal person can win. That wastes candidates’ time and damages trust.

External hiring and internal mobility solve different problems. A mature workforce plan uses both.

Sources and limits

These sources do not require every vacancy to be filled internally or prescribe this workflow. Organisational agreements, employment-equity obligations and public-sector rules may add requirements. The framework is practical guidance, not legal advice or a guarantee that internal hiring will improve performance or retention.