Great idea, absolutely butchered in execution. I want minor league players just as much as the next guy, but 99 Jo Adell? 108/110 power? Dude has 35 Hrs in over 200 minor league games.
Seriously, [censored] these players. Give us Sosa, give us actual proven players capable of carrying a 99 OVR rating. In the past Future Stars were rookies who could/were showing promise.
Next thing you'll know we will be able to upgrade any player LS or not, then the game will be called Madden MLB edition.