It took a while, but Peacock had an impressive year. Taylor at least is an MLB starting CF who also had a good year. The Giolito gamble (knowing he likely would need TJ surgery) was a good move that helped turn into Eaton.
You might also want to give him some credit for Dipuglia's signings. I think Castillo was saying that now half of the Nats system is from the DR. Certainly Robles, Soto, Severino, Lopez, Read, Rivero, etc... is a nice group. (I think Rivero was acquired in a deal with TB, maybe with Lobaton for Karns?)