This is temporary. They added Z because they don't care about losing him when they take him back off the 40 man roster. That is not the case for Ramirez or QTC. As soon as one of Albers, Miley, Davies is ready Z will be gone. Or if they actually use him in a blowout, they might rotate him for Lopez right away so they have a fresh arm in the pen. Miley is the only one who needs a 40 man spot and I honestly have no idea where he even fits on the MLB team when healthy. Even so, to activate him they could dump Asher, Franklin, or Sogard or move Franklin to the 60 day DL. I understand how the roster manipulation makes sense to call up Z over others but choosing him specifically makes so little sense. If they wanted a mop up guy they could have brought back up Asher or Lopez and kept a 40 man spot open. Heck, if they wanted a crappy old guy they could later DFA and lose nothing if claimed they could have call up Dillard.