I've often wondered what the HOF would look like if you took out the human factor and perceptions and came up with a set of statistics that define HOF greatness in each era (maybe using an average per year, to keep it fair for guys like Koufax or Puckett who retired early). Something like... if the bulk of your career was from 1900-1920, you should meet these criteria.. etc. Obviously you can't pick, say, Christy Mathewson and say everyone has to be as good as he was to get in, because then nobody would get in - but there must be an "average" HOFer for each era that could be used to compare.