AA left them with Vlad, Jansen, Romano, Mayza and the front office guys who fought the current guys tooth and nail to take Bo. The fact that up until last year there were still more AA draft picks/international signings playing meaningful time for the time than new regime picks is pretty telling.
AA traded away a lot of the farm in 2013 and 2015 but he was also quick to build it back up again through good drafting and development. We are still waiting on those waves now ten years into the new guys.