Lack of diversity at the top continues to puzzle organisations. It can’t be fixed by hiring in more diverse candidates. Diversity at the top is an excellent indicator of long-term success in career development. It requires the whole mix of tactics working together: managers, employees, HR, and a coherent career strategy to tie it all together. Equipping managers to nurture careers is key, but it’s tough. It may be best to focus on those who already invest time in developing people. Collaboration and ‘talent pooling’ across your sector may help too.