> a different skin color or hair style or manner of speaking and living i

Yeah, right. It's all about racism. As for volumes of research on performance management and management in general, they are just charade by white supremacists, right? Oh, and what about Asian people, in particular Indians, going all the way to CEOs and college principals and high-ranking government officials? Let me guess, they are white? If you think so, well, let's just say some people are racists to the bone, no matter how "progressive" they say.