mismanage vs supervise

mismanage

verb
  • To behave, in a management capacity, in a manner which is inept, incompetent, or dishonest. 

  • To manage an area of responsibility in a way which is inept, incompetent, or dishonest. 

supervise

verb
  • To oversee or direct a task or organization. 

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