Schwarber was doing better with the NAts than Rizzo with the Cubs, so it was a no-brainer.
Thing was, Schwarber was not healthy and it was uncertain, although we all bet Bloom did his diligence in that regard at least, in order to take the risk.
ER is coming from a severe healthy issue. He was expected to struggle, or at least it wasn't going to be easy for him in the first half of the season.
Do not forget. He was a 6th-vote CY caliber pitcher a couple of years ago, and the year before he was at the same level (and maybe better). IMO he is coming back nicely and quietly, and next year he will be solid again all year long.