y, but as an HR professional what sorts of suggestions would you provide to the CEO of an organization that does not promote organizational diversity?...

Not many organizations promote diversity, but as an HR professional what sorts of suggestions would you provide to the CEO of an organization that does not promote organizational diversity?  How would you obtain management support to even begin a program that promotes diversity and inclusiveness not just with the organization's stakeholders such as vendors, customers or shareholders, but within the organization?