The new administration is very protective of prospects and draft picks. One piece of evidence supporting this assertion is that all thirty of last year's Batter's Box top 30 prospects are still with the organization. Those 30 prospects have been bolstered with the 2016 draft class plus two prospects who came over in the Liriano trade.
The expectation of the top 30 prospects for any team is that one third will improve, one third will regress and one third will stay as they were. Thirteen of last year's top 30 prospects did not make it onto this year's list. Some of them have indeed regressed but the addition of this year's draftees, and the traded players, has raised the level of the top 30. A player who might have made the list last year, and who has maintained his performance level, might not make the list this year. In other words, this is a deeper system than 2015's. Baseball America has suggested that the Blue Jays now have a top 10 system, as compared to a bottom 10 system last year. On some top 30 lists the players in the 21 -30 range are barely prospects. This year's Blue Jay bottom third prospects includes some very good players. A strong top 30 needs star power at the top and depth at the bottom and this year's list has both.