Der Aufsatz befasst sich mit der Frage, ob sich eine wachsende Politisierung der Ministerialbürokratie und eine zunehmende Bürokratisierung der Politik in einer Hybridisierung der Karriereverläufe von Spitzenbeamten und Exekutivpolitikern auf Bundes- und Landesebene in Deutschland nachweisen lässt. / Switches between political and administrative positions seem to be quite common in today’s politics, or at least not so unusual any longer. Nevertheless, up-to-date empirical studies on this issue are lacking. This paper investigates the presumption, that in recent years top bureaucrats have become more politicised, while at the same time more politicians stem from a bureaucratic background, by looking at the career paths of both. For this purpose, we present new empirical evidence on career patterns of top bureaucrats and executive politicians both at Federal and at Länder level. The data was collected from authorized biographies published at the websites of the Federal and Länder ministries for all Ministers, Parliamentary State Secretaries and Administrative State Secretaries who held office in June 2009.