LOL.
I do wonder if Keller would be anything more than a decent 3-4 slot SP'er. His ERA+ has been 102 over the last 3 years, combined. (4.22 ERA/3.96 FIP)
Joe Ryan might be too expensive.
Luis Castillo or pablo Lopez might not take as much to acquire due to their high contract cost, but unless we give up Hicks, why wouldn't we just sign a short term contract, like we always do? (Perez I, Perez II, Richards, Kluber, Wacha/Hill, Paxton, Buehler & Sandoval)