It has nothing to do with him being black (actually, at Texas, it might). His resume is not impressive enough to get people to leave him alone and let him do his job.
Or more directly, HE isn't enough of a splash hire to move their needle, so they want splashes on his coaching staff. The big problem is he wanted to bring the UL offensive coordinator, and they all want someone who can run a spread or can recruit in Texas.
Coach Strong is actually growing on me some- how is he taking this new job and using it how he see fits. Texas fans expected him day one to start flipping Baylor and A&M recruits, and instead he is going back to those Florida high schools where is already a known quality and trys to sell those boys on his new team.
Time will tell if Texas fans demand not only who recruits for him, but where he recruits from. Some really like the idea of their program showcasing the best of Texas high school recruits to the country, but Charlie's easiest path for now is just bringing in the Florida boys (who seem to shun the idea of state loyalty). Time will tell if fans care more about stars than local representation.