There are political employees that have no civil security tenure that have mismanaged their affairs with no consequences. Don't expect too much from the newer model of Homeland Offense.
Yet such political employees may enjoy a certain insulation on account of their higher rank, and that the others in that rank that are not political are extremely uncomfortable removing anyone, or seeing anyone removed.
Besides Linda Tripp (who was elevated to a politically-removable position to do so it would seem) who else was let go during the term of an administration?