I've been in the 'be patient with Farrell, it isn't his fault the roster construction is horrible' camp for a long while now, After these last six games though, I'm done defending him. He has likely lost the respect of the team and most definitely lost the trust of the fans. The biggest knock on Farrell when he was in Toronto was that his teams were consistently unfocused, terrible at fundamentals, and horrible at baserunning. After 2013, what we've seen the last two years is exactly those things play out here in Boston. I've also seen horribly positioned fielders, including balls over outfielders heads who should have been playing deeper in the first place (ie Russell Martin earlier in the series), outfielders who should be playing shallower for players who don't have power, and probably a dozen balls to the left of Panda hop through the infield (yes, Panda is fat and has terrible range, but stop playing him so close to the line!).
I don't care if his bench coach handles the day to day on those things, I don't care if Butterfield is the one running them into outs, and I don't even care if the bullpen coach is the culprit for how unprepared the relievers look; from the top down this team looks disheveled, disorganized, and absolutely dead. Players who are usually fairly consistent contributors are playing so far under their averages this year that not even a sacrifice to the BAIBP gods can save them.
He and the rest of his old hand coaching staff (Farrell, Lovullo, Butterfield) need to go, I don't even care that it probably isn't his fault, but what I see from the eye test is a team that just doesn't seem to have a plan. And that is most definitely Farrell's fault. Managers usually get too much credit when their team is winning and too much blame when their team is losing, but unfortunately despite this reality, we need a sacrifice at this point because the team is losing. Something, anything. Let it be Farrell, he's managed his way into this mess at times that's for sure.
Folks have mentioned Boles up thread, why the hell not at this point? See where he takes us till the end of the season and reassess. If we need to clean house at the GM level in the offseason, we can do so and figure out a new manager at that time as well.