head up vs hold the purse strings

head up

verb
  • To lead or take the lead in; to direct; to take charge of. 

  • To close (a cask, barrel, etc.) by fitting a head to it. 

  • To turn towards the wind 

hold the purse strings

verb
  • To be in control of spending; to have financial power and responsibility. 

How often have the words head up and hold the purse strings occurred in a corpus of books? (source: Google Ngram Viewer )