(b)
An individual—
(1)
who has been transferred, assigned, or promoted from a position to a supervisory or managerial position, and
(2)
who does not satisfactorily complete the probationary period under subsection (a)(2) of this section,
shall be returned to a position of no lower grade and pay than the position from which the individual was transferred, assigned, or promoted. Nothing in this section prohibits an agency from taking an action against an individual serving a probationary period under subsection (a)(2) of this section for cause unrelated to supervisory or managerial performance.