Diverse Hiring Is the Easy Half: Retention Decides Whether Inclusion Works

The firms that spent years fixing diverse hiring are losing the same people through the back door, because inclusion is decided after someone joins, not at the offer stage. 

A firm I know spent two years rebuilding how it hired. It introduced diverse shortlists, structured interviews, and work-sample tasks, and the effort paid off. The intake became visibly and measurably more diverse, and everyone felt good about it. 

Eighteen months later, someone looked at who was still there. A good number of the people that expensive process had brought in had already left. The pipeline was fixed, but the bucket still had a hole in it. 

Almost everyone makes the same mistake of treating inclusion as a question of who gets through the door. The harder and more expensive problem is what happens to people once they are inside. 

Why Is Diverse Hiring Easier Than Diverse Retention?

Diverse hiring is hard work, and firms deserve credit for doing it. But it is also seductively visible. You can point at a cohort, put the number in a report, and declare the project finished. 

Retention offers none of that. It is slow, it is invisible right up until someone resigns, and it never finishes. So companies pour resources into the front door and overlook what the evidence keeps showing them: the people they worked hardest to attract are often the most likely to walk out the back. 

What Does the Research Say About Why Diverse Employees Leave?

The evidence is current and consistent. Business in the Community’s Race at Work Survey 2025 found that 72 percent of ethnically diverse employees in the UK had run into at least one barrier to their career progression, compared with 59 percent of white employees. That gap does not live in the recruitment process. It appears after people are in the building, in who gets developed, who gets stretched, and who gets put forward. 

The same pattern holds in the United States. In the 2025 Women in the Workplace study by McKinsey and LeanIn.Org, only 93 women were promoted from entry level to manager for every 100 men, and only 74 women of color. Four in ten entry-level women had received no promotion, stretch assignment, or leadership training in the previous two years. The study calls it the broken rung, and it is the reason so many pipelines thin out long before the top. 

A progression gap becomes a retention problem quickly, because people rarely stay to argue with a closed door. SHRM’s global workplace culture research found that 57 percent of employees who rate their culture poorly are actively looking for another job or soon will be, compared with 15 percent of those who rate their culture as good or excellent. Belonging and progression are not soft extras. They decide whether someone stays or starts to look elsewhere. 

None of this shows up in an offer letter. It accumulates afterward, in stretch assignments that go elsewhere, sponsors who never materialize, and promotion shortlists that always look the same. A hundred small signals tell a person how far they will be allowed to go, and eventually they believe them. 

Can Inclusion Efforts Push People Toward the Exit?

Here is the uncomfortable part. Some of what firms do in the name of inclusion speeds up the departure it was meant to prevent. 

The first culprit is the “diversity hire” whisper, the corrosive suggestion that someone got in for a category rather than on merit. A clumsy diversity push makes that whisper louder, not quieter. 

The second is the representation tax. The same few faces are asked onto every panel, every pitch that needs to “look right,” and every network, until being visibly diverse becomes a second unpaid job. The tax now has a number: in Business in the Community’s 2026 research on ethnic minority women at work, 23 percent said they carry the mental load of representing their ethnicity on top of the day job. 

The third is the sponsorship gap. Diverse hires get mentored plenty and sponsored rarely, and the same 2025 study puts numbers on the difference: 45 percent of entry-level men have a sponsor, against 31 percent of entry-level women, and employees with sponsors have been promoted at nearly twice the rate of those without. Advice over coffee is generous. Advocacy in the room where careers are decided is what moves them. 

Each one is a way of bringing someone in and then making it harder for them to thrive than it is for the person at the next desk. None of it is deliberate, but “we didn’t mean to” is cold comfort to someone who has spent three years as the only one in the room, carrying the extra weight, and watching less able peers get sponsored past them. That person has now, quite sensibly, decided to go. 

How Do Leaders Retain the Diverse Talent They Hire?

The leaders who keep the talent they hire treat retention as the real work rather than the follow-up. 

They measure the right things. They track not only how diverse the intake is but also who gets promoted, who gets sponsored, and who is still there at three years and five. A brilliant hiring number sitting next to a dismal retention number is a warning light, and they read it as one. 

They watch the load. They notice who keeps being asked to represent, to sit on the panel, and to mentor the new joiner, and then they share that invisible work out, or count it and reward it, rather than leave it assumed. 

They close the sponsorship gap on purpose. The people they fought to hire get advocacy and a route into the informal network, not just encouragement. McKinsey’s data shows what that buys: when men and women receive the same level of support, the gap in who wants to advance disappears. 

And they get honest about exits. When someone from an underrepresented group leaves, they resist the easy story that a great offer came along and nothing could be done. They ask the harder question about what working there was really like, and they ask it while the person is still around to answer rather than in an exit interview that comes too late. 

Which Numbers Should You Check Today?

You can measure your hiring diversity in an afternoon. Can you say, right now, what your retention looks like across the same groups? Who is still here after three years, who gets promoted, and who leaves? If those two numbers tell different stories, which one have you been managing? 

A diverse cohort that empties out over time is not inclusion. It is a more expensive way of ending up where you started while telling yourself you did something about it. 

What would change in your firm if you were judged not on who you hired this year, but on who was still there, and thriving, in three? 

About the Author

James Nathan is a Partner at Stanton Chase London. With more than twenty-five years in executive search and professional services, he advises boards and senior leadership teams across professional services and entertainment businesses on high-stakes leadership appointments and succession decisions, from specialist boutiques to private equity-backed and established global businesses. He qualified as a Chartered Accountant before building his career in recruitment and advisory, and he works with clients on leadership structure, succession planning, and talent strategy through periods of growth, transformation, and leadership transition.