The first "wave of talent" is almost here, and by that, I mean Baez/Alcantara. The next wave may not be that far afterwards. Baseball America placed 6 Cubs on the list of the Top 20 Prospects of the Northwest League. #1 Kris Bryant #7 Paul Blackburn #9 Yasiel Balaguert #10 Dillon Maples #12 Shawon Dunston, Jr. #17 Kevin Encarnacion I won't …