Stop scratching the surface !
Go deeper for bigger changes.
A vast majority of policies are too limited both in terms of resources and scope to allow registering the magnitude of change needed. They only scratch the surface while deeper change is needed.
Many policies tend to address the issues perceived by management, which are quite often different from the actual issues. Management often tends to develop wrong assumptions about the root causes for the limited diversity. For example, many senior executive tend to believe women leave to take care of their family while women often leave for competitors. Diversity efforts sort of miss their target.
Last, most policies do not effectively address the impact of System 1 and therefore have limited impact to effectively change behaviors.
A global industrial company had most of its growth levers in emerging countries. However, its total number of general managers was too limited to allow the opening of all subsidiaries considered, and most of the current senior executives had limited appetite for the new bottom-of-the-pyramid local market segments.