I'm actually not much of a Young fan, and, while I have defended Farrell, I did so on general principles. Last year I would have been fine if he had been fired.
My points about Young on the other thread (referendum on Farrell) were that playing him against righties was not unreasonable because the Sox hadn't faced many lefty starters and the Sox were paying the guy $13M/2 years to do something besides ride the pine. Plus he played 140 games for the Yankees last year. Plus it was April and a good time to see what he could do. Plus the Sox offense was actually doing pretty well whether or not Young got a hit. But most of all I believed that Young would not have been played if management, including both Farrell (and Lovullo) and the front office, hadn't thought it was worth trying. In retrospect, it's possible they wanted him to hit against righties just to prepare for the unlikely event, now upon us, that he might have to play against righties. Plus maybe Chili Davis was saying he could hit righties despite that horrible OPS.
Thus I was astounded when the few times Young played against righty pitchers were treated as prima facie evidence that Farrell really doesn't have a grasp of which players to use. Yes, yes, the story went, the team is playing well and winning, but Farrell is clueless about who to insert into the lineup when. Look at that Young guy going up against righties if you doubt his ineptitude.
I'm also astounded you can honestly say that, despite Young's success, Farrell was still wrong to play him. In other words, if any of us thinks Farrell shouldn't have made a move, any move, he's wrong whether or not it works out. Me, I'm the opposite. I think all moves are OK because he knows his guys and the other teams' players a whole lot better than we do.