Heading into the offseason, the Pirates have a big roster logjam behind the plate. Henry Davis has the best glove, Joey Bart has the best bat, and stalled-out youngster Endy Rodriguez and recent top prospect addition Rafael Flores are also on the depth chart. Davis' bat still hasn't developed, but he managed to guide an over-.500 record this season and shouldn't be discarded yet. Therefore, moving Bart while he still has some value makes the most sense.
Notably, the Texas Rangers showed interest in Bart at the trade deadline, according to Rangers insider Jeff Wilson (subscription required).