management vs triumvirate

management

noun
  • The executives of an organisation, especially senior executives. 

  • Administration; the use of limited resources combined with forecasting, planning, leadership and execution skills to achieve predetermined specific goals. 

  • Judicious use of means to accomplish an end. 

triumvirate

noun
  • An official group of three people, especially a ruling council of three men and particularly (historical) two such councils in Roman history. 

How often have the words management and triumvirate occurred in a corpus of books? (source: Google Ngram Viewer )