One of the things I have learnt that is supported by data, is to hire the most senior person you can of the diversity that you are trying to attract. Having role models in the business/organisation is critical, people can see this role model in a position of seniority, something to aspire to.
Another thing is metrics, show me the numbers! How many Black, Asian or minority ethnic people applied? How many were shortlisted? How many were successful? How did they progress? What’s the retention?
Having mentors and ideally sponsors is another factor. Having the support and representation, even when we’re not in the room, to advocate on our behalf.
Lastly, we need to get comfortable with talking about race and ethnicity, as well as diversity and inclusion as a whole; gender, disability etc.