Their pitching has overachieved to amazingly unsustainable proportions. Their offense hasn't really been able to hit much this year. Not really. They have a extremely high strand rate, but they've still pitched great, just better than their FIP, which is still second to only the Dodgers in all of baseball. So no, they haven't overachieved to amazingly unsustainable proportions. And whenever a team gets blown out, they look terrible. Judging their season performance based off the last two games is silly as the people who judge players off having a bad post season series. But I get it, your Cubs fans who hate the Cardinals, so logic isn't really what you're going to be using when evaluating a rival. The Cardinals can both have a very good pitching staff and overachieve unsustainably, they aren't mutually exclusive. Having a team FIP that is 2nd in the NL means they are good. Having an ERA that is 0.66 better than their FIP(next best gap is the Pirates at 0.25) when their defensive efficiency is middle of the road means that they aren't nearly as good as their results. They've definitely overachieved to a point, but they've sustained it for 140 games. I just hate when people try to simplify things down to luck, instead of giving players credit for their performance. Seems like a lot of Cubs fans do it just so they can feel better about their team being a laughingstock for years. Boiling down the Cardinals being the best team in baseball down to "pixie dust" is stupid on so many levels.