One problem I see with "timing" is that the core we all envision might not be the core we'll end up with. Example. According to this top 22 list written 3 years ago, the Twins best prospects were: 10: Kepler 9: Salcedo 8: Bullock 7: Arcia 6: Revere 5: Hendriks 4: Sano 3: Hicks 2: Wimmers 1: Gibson Flash forward to 2014 and the best players were Brian Dozier, Trevor Plouffe, Danny Santana, Revere, Arcia, Gibson, Pinto, and Kennys Vargas - only 3 of whom ranked in the top 22 of this particular prospect list. I'm curious - has anyone gathered the various BA, MLB.com, minorleagueball.com prospect lists over the years and determined how accurate they are? Who the most accurate forecasters are? Trends? (ie. are certain types consistently overvalued or undervalued?) Has anyone considered the possibility that the new core is here already?