Most studies on government coalitions in Latin American democracies consider the cabinet to be an organ of collective government and analyze legislative support for the president on the basis of the political party affiliation of the ministers. Given that the Argentinian case does not adjust to this perspective, by constructing the concept of cabinet trajectory, the article shows how two fundamental causes (i.e., the low degree of institutionalization of political parties and the centrality of the presidency) combined with two proximate causes (i.e., the context in which the head of state assumes and holds office, and the strategies he or she uses to govern) determine the makeup of the cabinet. The study concludes that the trade-off of cabinet posts for legislative votes does not exist in Argentina.