Walker looks like he's on track. That splitter is nasty.
Harrison is a placeholder, so is Guthrie.
Kingery looks cooked, but Ortiz is off to a good start but they'll want him to have 200-300 PA before assuming he's turned the corner.
Muzzioti is LH, Pache is injured.
Most of the RH options are at Reading, De La Cruz, Wilson and Rojas. Radcliff is injured.
So Harrison is probably the best they can do before the Allstar break, and who are you going to trade for?