And I agree with him. I know Max was sent down b/c of a rash of lefty starters, but I am not sure what Rig is waiting for on Bernadina. Harris is not great, but a better option against righties.
They probably want to give him a long look so that it will never be said that he was not given a fair shot. This way, if he fails completely, they can move on to other options and know for certain that he isn't the answer. That's all I can think of.