inefficient vs minor league

inefficient

adj
  • Not efficient; not producing the effect intended or desired; inefficacious 

  • Incapable of, or indisposed to, effective action; habitually slack or unproductive; effecting little or nothing 

noun
  • A person who cannot or does not work efficiently. 

minor league

adj
  • Having a quality less than the best possible. 

noun
  • An association of sports teams that plays at a level below the major leagues of a sport. 

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