Jason Motte gets hurt, Mitchell Boggs pitches so poorly they have to trade him, and that's no big deal for the Cardinals. Edward Mujica, who had four saves in his career before this season, has notched 30 and is suddenly a lights out closer.
Even the other rookies in the bullpen (Keith Butler, Seth Maness, Kevin Siegrist) have adapted to the big leagues with almost no flaws.
Matt Holliday's recent injury might have made the team better in the short term, as it gets Holliday healthy and gets Matt Adams' electric bat in the lineup more often.
Still, the ultra-efficient Cardinal machine could be even scarier come playoff time with a few tweaks.
Pete Kozma's got to go. He's slick with the glove, but is such a sub-optimal hitter that it's clear his September run last year was a fluke. The trade market is slim, but Ryan Jackson in Memphis should be a sizable upgrade if he's given the shortstop job. He's hitting .291 in AAA, and at least looks to be an average offensive player at the big league level while holding his own with the glove. Kozma, on the other hand, has a .242 batting average, a sub-.600 OPS and is getting more lost at the plate with every passing day. His utter incompetence at the plate nearly negates his glove.
Lastly, while Jake Westbrook has been pitching effectively, the Cardinals could use another starting pitcher. Westbrook's stats seem propped up by fairy dust. His lack of strikeouts is an issue, as he walks more batters than he strikes out. He's a fine fifth starter, but not the kind of pitcher that should be part of a four-man rotation in the playoffs.
St. Louis has been tied to Jake Peavy in the trade market, and that would be a good upgrade. Peavy's stats have been inflated by a flukishly high home run rate, one that would ostensibly diminish if he didn't pitch in the bandbox at U.S. Cellular Field.
But these are just nitpicks.
John Mozeliak has been about as close to a genius as one cane be since taking over as the Cardinals' GM. If no moves are made, the same thing will continue to happen.
The Cardinal machine will just keep chugging and chugging and chugging, forever in perfect and steady motion.