This is, without a doubt, the most frustrating baseball team to watch right now. For the past several years, actually, the Cardinals have been a frustrating, occasionally maddening club to follow, but each iteration has had its own special little irritant built in.
For most of this last little run of, um, not futility, but a sort of infuriating competence that infuriates due to missing out on glory by such narrow margins, the culprit or culprits have been easy to identify. On multiple occasions the Cardinal bullpen has cost the club a few extra games, just enough to push them out of a playoff spot.