do one’s bidding vs ride herd on

do one’s bidding

ride herd on

verb
  • As the new editor, his job is to ride herd on the staff and check on the tone of the articles. 

  • To supervise a group of people and their work. 

How often have the words do one’s bidding and ride herd on occurred in a corpus of books? (source: Google Ngram Viewer )