It doesn't take much evaluation to point out that a guy has thrived at each of the lower levels, plays a premium position, and is very young. As for the Castro comparison, the one thing that Amaya has on him, and seems to have had going for him all along is OBP, which this organization values highly. Second base is a premium position? In the only league Amaya and Castro have both played in (AZL at age 18), Castro walked 14 times in 215 PA while Amaya walked 13 times in 227 PA. Castro had a better IsoD wen you compare their rookie ball seasons. Castro showed better patience; Amaya had a higher OBP because he hit for better average but I think we all know Castro had and has a better hit tool. Up until this season, he's played as much SS as anything else. Between Castro and Baez, we seemingly have SS locked up long term one awy or another. With all of the other high ceiling MI prospects we have: Amaya, Hernandez, Alcantara, Torryes, and Lake, who is still considered high ceiling in my book, they can't all play SS.