Several extended families worked together as a "local group", which carried out certain ceremonies, and economic and military activities. Political control was mostly present at the local group level. Local groups were headed by a chief, a male who had considerable influence over others in the group due to his effectiveness and reputation. The chief was the closest societal role to a leader in Apache cultures. The office was not hereditary, and the position was often filled by members of different extended families. The chief's leadership was only as strong as he was evaluated to be—no group member was ever obliged to follow the chief. The Western Apache criteria for evaluating a good chief included: industriousness, generosity, impartiality, forbearance, conscientiousness, and eloquence in language.