So were the Nats supposed to sign an outfielder to a multiyear contract before they know if Wood, Crews, Hassell III, Green and Lile are going to come through. They'll know a lot more after this season.
They could of signed a frontline pitcher and put Williams, Irvin or Corbin in the bullpen but all the pitchers signed for about 2 years which wouldn't of helped much this year. They could of signed Montgomery or Nola but they're asking too much.
They shouldn't of signed a third baseman before finding out about House or a first baseman because they need to find out about Meneses.
Bottom line this was just not the offseason to sign free agents. Next offseason they'll know more.