Galvis offers scant value to a potential playoff team. Anybody trading for a shortstop is going to want someone with better defense. I don’t doubt for a second that Mike will take any deal that he thinks it’s worthwhile, but remember that Villar was an off-season transaction and Mike tried unsuccessfully during the season to trade him.
Regarding a replacement at SS, we haven’t tried Lebya so sure throw him out there.
For what it's worth: With the poundings they took from the Astros, the Orioles are creeping up on Arizona for the worst run differential in MLB. The Orioles are at -105 and the D-Backs at -109. The Pirates are next at -95.