groupthink vs touch base

groupthink

noun
  • A process of reasoning or decision-making by a group, especially one characterized by uncritical acceptance of or conformity to a perceived majority view. 

touch base

verb
  • To touch a base, usually with a foot but sometimes with a hand. 

  • To meet or make contact with someone, usually to consult, review, visit, or communicate. 

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