I call them traitors.
Not bad...but I call them REMFs. For an ex-Army Officer like myself, the term has so much more cache. LOL!!!
For those unfamiliar with this nugget of an acronym, it stands for Rear Echelon M----r F----r. A more socially acceptable term might be "Staff Puke", i.e. an officer that you want as far from a leadership position as possible.