bush league vs shiftless

bush league

adj
  • Amateurish, unprofessional, unpolished, juvenile. 

  • Of inferior quality. 

noun
  • A professional sports association at the lower levels of minor league organization. 

  • A low-ranking or inferior level among groups, professions, organizations, etc. 

shiftless

adj
  • Lazy, unmotivated. 

  • Untrustworthy as a result of being incompetent at the job. 

  • Destitute of shifts or expedients; lacking proper means. 

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