However, if I were the AD these two coaches would be gone, immediately!
I don't have a huge problem with the school asking(demanding) that she retract her remarks was a big deal. I'm sure she wished she hadn't said them. I do have a huge problem if they threw pitches at her on purpose. I don't think it's unreasonable that a civil suit can be filed against the coaches.
I believe that the remarks that the school is demanding she retract is her accusations that they purposely threw at her. Not her initial wish of playing elsewhere.