You've got Escobar who was sort of an 90s verison of Aaron Sanchez - came up as a lights out RP - moved to the rotation and then back to the bullpen... then left and had some good years as a starter with the Angels.
If you want to go way back (even before my time) Roy Lee Jackson had a couple of decent years and I don't know how good he was but Jim Acker pitched a bunch for them back then as well.
The Following User Says Thank You to PeteMoss For This Useful Post: