Internal Mobility: Hiring From Within

The best candidate is often already on the payroll

Somebody resigns on a Friday. Two months later the company hires an external candidate for a role the person who left could have done, at a salary that would have kept them.

This happens constantly, and Gallup puts the cost of voluntary turnover to US employers at around $1 trillion a year. Some of that is unavoidable. A meaningful share of it is companies failing to notice what they already have.

The numbers on internal hiring are not subtle. Work from Josh Bersin and LinkedIn's 2025 Workplace Learning Report finds internal hires are roughly 40% more likely to still be there after three years, and reach full productivity around 20% faster. That is intuitive enough. They know the systems, the people, and where things are kept.

So why does it keep not happening? Usually because of one manager, protecting their own headcount. A good employee is worth more to their immediate boss where they are than they are to the company somewhere else, and there is rarely any mechanism that resolves that in the company's favour. Career advancement, or the absence of it, remains one of the most consistently cited reasons people resign.

The internal advantage

	Internal hires, vs external recruits
More likely to stay at least three years	~40%
Faster to reach full productivity	~20%
Annual cost of voluntary turnover to US employers	$1 trillion

Source: The Josh Bersin Company; LinkedIn 2025 Workplace Learning Report; Gallup

The structural answer is an internal talent marketplace: a record of what people can actually do, visible across the company rather than filed with one manager, so that the accountant who taught themselves to build dashboards shows up when a relevant role opens. It works to the extent that it is genuinely open. An internal marketplace that a manager can quietly veto is just the old system with a new page on the intranet. As Josh Bersin observed in his Talent Climate research:

Now, more than ever, there needs to be a culture of movement inside the company, whether those moves are part time, project based or full time.

Josh Bersin

For workers, the useful version of this is simpler. You should not have to resign to get a different job at the same company, so ask what is open internally before you start looking outside, and make sure the things you have learned on the job are written down somewhere your own employer can see them. Most people record their new skills only on the resume they send to competitors, which is a strange place to keep the only copy.

It is the same problem as an employer not being able to see a qualified stranger, moved indoors. The person who can do the job is usually already in the building. The work is making them findable.

Internal Mobility: Hiring From Within

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