My friend played (walked on) for Holtz at ND....he almost left the first year...but stayed with it. He seemed to indicate that Holtz was a racist SOB.
There are a lot of stories about Holtz that the media covered-up. You won't hear them now that he is an old man. To be fair about the racist stuff, there probably was a lot of Southern coaches that came of age during that era , were of the same cloth. That was the culture. How many stayed frozen in time and how many changed is the issue.