Home field in baseball means squat ... look at the number of years the home team has swept or whatever ... very small. I mean the Sox and Cards were dominant at home, but they had winning road records too - they are good teams, period. The home advantage is ok, but it's a lot smaller than it is in basketball.
Farrell's mistake was being caught in between last night - either go to Breslow after the walk ... OR let Lackey (who was still throwing well) work his way through the jam. Yes, bringing in Koji for the highest leverage situation is the right move - but almost zero managers in 2013 would do it (even Maddon, Melvin would act conventionally here - Francona going to Keith Foulke in that spot is rare, and it took the Red Sox being against the wall to do so). And Breslow has been marvelous. What I question is the slavish lefty-on-lefty thing here. Breslow is not really a matchup guy - his swing and miss stuff (the change) is better against righties. I did not think it was an automatic decision - I would have stuck with Lackey, but Farrell's instincts here were not wrong.