Which team did the Oakland Athletics defeat in the 1972 World Series?

Which team did the Pittsburgh Pirates defeat in the 1971 World Series? Who was named MVP of the 1971 World Series? Roberto Clemente was named World Series MVP in which year? Who managed the Pittsburgh Pirates to victory in the 1971 World Series? Who was named MVP of the 1972 World Series? Gene Tenace was named World Series MVP in which year? Who managed the Oakland Athletics to victory in the 1972 World Series? Which team won the 1973 World Series?