There's no reason for the team to get tunnel vision with Ray. They already have almost a full rotation locked in, so they have the luxury of being very selective about what 1/2 type they bring in to round it out.
Ryu
Berrios
Manoah
Stripling/Pearson/low end FAs
Syndergaard, Verlander, Scherzer, Rodon, Gausman, and Greinke could all potentially make more sense, for different reasons, depending on how the offseason plays out.
Semien feels like the more irreplaceable piece.