Nobunari Oda has made a blog post about his leaving his coaching position at Kansai University. He says he was suffering 'moral harassment' on the job and the university wouldn't do anything about it. The media falsely reported on it and said he was too busy to continue. I would say "who would treat a person like Nobu that way?" but as we see from recent discussions around the fandom, some don't need much of an excuse to mistreat or harass good people.
https://ameblo.jp/oda-nobunar