Many organisations naturally find and attract people similar to the people they already employ. People tend to find that they spend disproportionate time with people like themselves, the same interests, social activities, hobbies, sports etc. Things are unlikely to change without some clear actions that will shift decision making.
The route cause of the problem is typically unconscious, not conscious, If this is the issue then organisations need to work together to try and remove this unconscious limitation on hiring a diverse workforce. Here are some good thoughts to reflect on
1. Increase the diversity of your recruiting team, consciously making them more diverse will tend to attract/select candidates who are more diverse. 2. Fish in different pools; Einstein said that doing the same thing and expecting different results is the definition of insanity. If you want different people, you need start by looking in different places. 3. Use objective criteria for evaluation Develop and weigh interviewing criteria that use objective measures and exclude bias. 4. Make hiring decisions as a group Collective discussion and debate will be more likely to uncover and challenge biases. 5. Give extra credit for diverse candidates Before you scream "quota" or "affirmative action," my point here is that candidates who have been a minority in a given environment and have achieved a high level of success have had to over perform relative to non-minority candidates.