Moreso than at any other point in the last, I dunno, 10-15 years or so, the Yankees dipped into their farm system for help this summer. Whether it was the bullpen shuttle, injury replacements, or late-season call-ups, the Yankees showed faith in the young players and have largely been rewarded at the Major League level. That alone qualifies 2015 as a good season for the farm system.
The Yankees welcomed yet another affiliate to the organization this year in the rookie level Pulaski Yankees. The team’s eight (!) domestic full season affiliates went a combined 422-403 (.512) this summer, giving them back-to-back winning seasons in the minors.