The St. Louis Cardinals had the best record in baseball in 2015, largely as a result of having the best pitching in baseball.
But now, even the Cardinals will face some pitching challenges. They are one of the few organizations in the game that has demonstrated an ability to stare down adversity on a regular basis. But circumstances will make repeating a 100-victory season, and a 2.94 team ERA, even more difficult than usual.
Mike Bauman is a national columnist for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.