Something I just stumbled across on BBR, for minor leaguers, they now have an age differential (AgDif,) offering that players age variance vs. the average age of their league. Differs for pitchers and position players and it gives it for each year of that players minor league career. For example, Javy Baez is -5.7, making him 5.7 years younger than the average PCL PP. Even Vitters is still -2.7, giving us a few more years to hang our hats on his age for his league. Of course, it probably lumps in the AAAAers and ex big leaguers not quite ready to call it a career, but some pretty cool toilet reading nonetheless.