I have never totally understood the need for a designated CLOSER. I guess it works for the most part, but because the inning is called the 9th does that necessarily draw drama and import to it. In these tightly played playoff games, it becomes readily apparent that each relief appearance is crucial, no matter the inning.
To me you go with the hot hand, the stable arm, the competent experienced relief pitcher... for the most part, screw what inning it is.
The whole closer thing has become too automatic, just like not choking up on the bat has become automatic. But winning games because of these things is not automatic, and accounts for some telling losses.