This does not involve a workplace harrassment issue, this is in an educational setting involving a student/athlete and teacher/coach, with Title IX, NCAA rules, university rules, in addition to common law and statutory guidelines.
Also, I am speaking as a trial lawyer and not an employment lawyer.
Good luck to the coach winning a jury trial against a university because they disclosed to a prospective employee that said coach was disciplined for having sex with one of their players.
Now, scenario 2 could be successful in front of a jury with a good trial lawyer...especially the kind that will nearly bankrupt a entire county when they fight and win in court!