When the price gets high, you pay some of them - no farm system stays indefinitely stocked. After all the farm exists to serve the big league club - however that happens. Now whether Dombrowski has replenished is a fair question. Right now, the answer is "some". But every system has these cycles - including the Theo years.
And - for the most part, Dombrowski's decision involving prospects to deal have been defensible ones - perhaps even correct.