I don't really have time to answer your question, I'm sure someone will, but I'd like to point out that Bo Bichette is one of three players in AAA that are 21 years old with 50+ PAs. He's the youngest player in the International League at that cutoff, and considering the fact that he's a March birthday it basically means he's a full year younger than anyone else achieving that. Other 21 year olds in AAA are Carter Kieboom, Luis Robert, Gavin Lux, Jesus Sanchez, and three of those guys were basically only promoted there a couple of weeks ago. The only younger player in AAA this season who's not some gimmick callup was Vlad Jr.