I know this may sound like a crazy idea, but what about trying to resign Milton? His contract would undoubtebly be reasonable. I know he's not been good for the Reds and was grossly overpaid. I know he's a flyball pitcher and most of RZ doesn't like him. With the pitching market as thin as it is and the Reds desperately needing starting pitcher, I don't think it's a terrible idea to consider if the contract is cheap. Even though the sample size was small, he didn't pitch that bad in his appearences this year. Further, maybe after the surgery, he'll regain a little more of his velocity.
Again, I know, it sounds like a crazy idea. The starting pitching has to come from somewhere though.