Group decision making is not without drawbacks. First, group decisions are time-consuming. It takes time to assemble the group, and the interaction in group decision making is often inefficient. Groups usually take more time to reach a solution than an individual. In group decisions, there may also be minority domination because members of a group are never perfectly equal. In a group, the members may have different ranks in the organization, knowledge about the problem, experience, verbal skills, etc. One or more group members have the opportunity to dominate others in the group because of this imbalance.
Another problem with group decision making is the pressures to conform. Sometimes people remained silent, even though they do not agree with the consensus views.