I'm not sure both of them can be in the rotation though. Houck has the higher ceiling as a starter than Crawford IMO.
I'd go with:
Yamamoto
Bello
FA/Trade
Sale
Houck
pen: Crawford, Pivetta, Bernardino, Schreiber, Winckowski, Whitlock, Martin, Jansen
They've loaded up on bulk guys (Houck, Crawford, Pivetta, Murphy, Winckowski, Whitlock) and I don't think it necessarily works for stabilizing the roster. Winckowski has been better now that they are pushing him towards a more pure relief profile. I'd like to see that for Whitlock as well. They should probably consider trading one or two of the bulk guys and adding in pure relief type arms or shoring up the rotation.