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IIRC, "Moneyball' talks about the great value of guys who take a bunch of pitches, even if they don't walk, is that it gets you into the other team's pen more quickly.
Same concept, but in reverse of this.
Don't make errors, your starters get another 1/2 inning...with some less game stress. The other guy then doesn't get to beat up on you LR.
Don't swing at the slider down and away and you get to the other teams pen more quickly and then you get to beat up on the other teams LR.
When it comes to starting pitching, mid-game attrition is a big deal.
Keith