It doesn't really matter who starts the second game or third game or fourth game, and they may also want to slot Ranger 2nd or 3rd simply for being a lefty. The main thing is they have four solid starters and if you are confident in Ranger, and in Eflin being back, you really only need another guy for depth (along with Falter and the inevitable AAAA options.
Or his emergence lets you consider trading Nola or Eflin, if it makes the team better in some other way.