A Northwest Coast Indian could become a tribal chief by

the first action that caused many creek indians to turn against william mcintosh was when mcintosh a) supported the united states during the creek war of 1813–1814. b) attempted to stop the sale of creek land to the u.s. government. c) seized control of over 1,000 acres of land belonging to the creeks.

i believe it to be a democracy

there are many answers to this question, such as a diplomat, ambassador, soldier, united nations employee, cia, etc.

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.