The Bureau is tasked with managing the Assembly schedule and interpreting its rules of order, including the power to expel members from the sessions. There is also a second, consultative body, the Spokespersons' Council (Spanish: "Junta de Portavoces"), which is made up of the leaders and spokespersons from each parliamentary group in the Assembly and has the right to be "heard" before the Bureau takes some decisions such as scheduling debates and votes. In the Spanish system, however, ruling parties usually do not hold a tight grip over the Parliament's schedule, nor do they use it to turn down the opposition proposals without debate: they are just voted down in committee or by the full house after the shortest debate allowed by the rules of order. Thus, while control of the Bureau and the Spokespersons' Council is definitely important, it is not a critical matter as it sometimes becomes in other systems. The Assembly organises its work in different committees. Committees are constituted by the bureau of the Assembly on the advice of the Spokespersons' Council. The number and grouping of its members is also determined at the same time. The election of the membership of the committees is a role of the parliamentary groups that have to be always represented in the committees. The committees are directed by a Bureau composed of a Chair, a vice-chair and a secretary and each group is to designate a Spokesperson and an adjutant spokesperson for the committee, that will usually take care of that matters also in the plenary.