I feel the need to point out to those saying things like "AA built up the farm in 2 short years from the Dickey and Marlins trades, he would have done it again"
Look at those players that became the center of the farm this year. Norris, Pompey, Sanchez, Castro, Osuna. They were all here before the Dickey/Marlins trades, AA didn't pull them out of his ass and develop them in a short 2 year span, they were already here in the lower levels of the farm system and they developed into top prospects.
There were a couple guys brought in after that. Hoffman, Pentecost, and SRF(Pentecost and SRF still here) in a great 2014 draft. He brought Travis(still here) in via trade and I supposed you could include Harris, and Vlad Jr(both still here) but they were just barely here before the pitching purge in late July. But the vast majority of our top 10 system we had before 2015 started was based on AA's drafting and IFA signings before 2013.
What that means is if AA stayed, and in 2 years time had the system full of prospects again by 2017 where are most of those prospects right now? Down in the lower levels of the minors. They're already here, AA has already brought most of them in. If AA is so good at building a farm system(and he is) then we'll likely still reap the benefits of that in the years to come.
We have a handful of those top guys still there, Pompey, Alford, Harris, SRF, Tellez, Pentecost, Vlad Jr, Urena, etc.
But names most haven't heard of Hollon, Maese, Bergen, Perdomo, etc, etc are going to become the Norris', Osuna's, Castro's of the future, guys AA already brought in.