There have been successful political appointments, but they are the exception. Generally these are bad appointments, and at times corrupt, because they were not intended to improve the ability of Ministers to carry out their policies.
An increase in political appointments will destroy what is left of the professional independence of the Israeli civil service.
For the article (in Hebrew) see: http://www.haaretz.co.il/opinions/.premium-1.2913011
See also in the attached file.