Managment may think many things, but that presuposes that diversity of thought comes from the diversity of skin. I can practically guarantee that if your company hired a diverse mix of races, but they were all of technical background and straight HS to college to work then you would not get the diversity of thought you would get if you focused your spare hiring capacity on hiring retiring US marines, radar techs, prisoners, people close to retiring age or any other group that is typically left out (or persevered to be left out) of the typical high tech startup.