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It's funny - there is a long list of things that I never appreciated before 2010-11, when all of us pushed each other to look at all these things objectively.
Now you find yourself wondering how many pennant races were narrowly lost, because the backup catcher got his pitchers in trouble.
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Probably not a TON, because ML orgs are way ahead of us -- most of them have always taken game-calling backup catchers, rather than hitting catchers...
But go find the orgs that made a funky decision at backup catcher, as the 2011 Mariners did, and I'll bet that you could find the bad news for the 162-game pitching staff...