It was difficult with the fact of institutionalized racism.
Explanation:
The appearance of black players in NFl was also something that had happened so late that it is quite mind boggling.
For the players to then grow and actually take up coaching positions was harder because of a few things.
One of them is that the white players and the administrators were wary of a black man taking decisions for the team and running things around.
The second was the fact that there was no way for a black person to enter administration enough to be considered for coaching
Instead of establishing colleges, some African American educators wanted to start religious schools.
Written sources only go back in history to the time they were written.
racist is everywhere so I don't think so