I am not accusing you of lying. These are hardly facts to lie about and involve a lot of supposition. For instance, the chair may have made an offhand remark, b

I am not accusing you of lying. These are hardly facts to lie about and involve a lot of supposition. For instance, the chair may have made an offhand remark, but the faculty (especially if tenured) may or may not be beholden to the chair. No promotion anywhere is obligatory, so the postdoc could have been denied Instructorship for a hundred other reasons, etc. etc. Further if the postdoc was denied instructorship and another H1B was hired in their place, then it is just tantamount to eliminating the instructor position. It goes on and on.