NBC has a long article on the blame game.
The following month, the district received another letter, this one signed by a group of anonymous school principals. They accused [the superintendent] of sexually harassing women he supervised and exchanging sex for promotions and job security.
The district neither investigated nor shared the hotline report, nor the principals’ letter, with the school board.
...
“[The superintendent] served this district for 30 years … and it was important to the board to recognize that service,” [the Board president] told us. “And we also needed to communicate that he was no longer fit to serve, and that it was no longer in the best interest of the district to move forward with him as superintendent. Both of those things were true to the board.”