I can't imagine them being employed to teach white and black students with the racial tension of the time. Were they all simply put out of the job?
Would it follow that anti authoritarianism would be fostered in an enthronement with the absence of teachers the students can relate to i.e. of the same background and community?
On another note was the overall curriculum different in majority black schools before integration? For example would they touch differently on the black experience in American?
Despite tension and potential violence, black teachers did much the same as black students and integrated the previously existing school system staying teachers and principals. This model was able to work because though integration had dissolved the previously binary (or in some cases trinary) school systems, some formerly all black schools stayed open with all or most of their previously all black staff.
On the other hand, some teachers quit, some were fired, others shouldn't have been teaching in the first place, (but there's little that can be said on that, most of it due to the severe lack of funding for minority schools across the board) On your second note, there indeed was a massive wave of dissatisfaction in many areas due to integration. Many in the black community felt that integration was taking away their role models in the black businessman and black principal or teacher, black schools were shuttered, or fused with white districts taking away what some saw as Black heritage and traditions. This led to more than a few protests, marches, and general civil disobedience.
Follow up question. What races taught at segregated schools? For example, did black schools have black teachers or was white faculty the norm?