I think you may be overlooking a certain Cy Young pitcher that is coming to town on Sunday. There is never going to be a "good situation" to pull him back up, because every series is going to throw either an elite righty, or a mid to high tier lefty at us, and even if he has a solid game one day, he might go an 0-fer after that. The simple fact of the matter is, keeping him low in the order takes the pressure off him.