I think scouting is more difficult now. 10% is the difference between Mike Trout and the average player. 10% is the difference between the average player and the guy not good enough to make it. Lots of guys have 10% better tools than average but are not 10% better players than average. Back in the day anyone could have told you that Mickey Mantle was amazing, but 23 teams didn't think Mike Trout was.