I think the stuff back home has something to do with it. His brother was in a fight every other day last week and said as much. I'm sure focus is an issue. Before that he was playing well.
Vaughn definitely has slumped a bit. I don't know if being jerked around is the cause. When the manager doesn't have a ton of faith in you it probably doesn't help.
It makes no sense to have quote the best farm system in mlb and have to turn to Greg Jones. It's as if they have only prospects or bananas ball players.