How does an adjunct end up changing a grade from F to B-? And how do people find out about it? If I'm working as an adjunct and a student fails my course then comes to me saying that it's going to affect her athletic eligibility and her graduation, I'd get the chair involved right away. Adjuncts can't rock the boat if they want to return to teach the next semester.
So did he offer some sort of makeup assignments for her to earn a higher grade? Did the chair, the dean, the AD just tell him to change her grade for no reason? The registrar has to have a policy that requires documentation of reasons for a grade change. And how does this get out anyway?