I don't know how many, if any, people reading this would disagree, but it's nice to see this issue written about somewhere other than Baseball Prospectus, Hardball Times, etc.
Two particularly good quotes in the article:
1) Billy Beane: "Whitey Herzog had a lot of success with a closer by committee... Although now that I think back on it, I'm not sure they called it 'closer by committee' back then. I think then it was just called 'using your bullpen wisely.' Then closers became 'specialists'."
2) Caple on the risk of more rational bullpen usage (i.e., using the best reliever in truly high-leverage situations): "Of course, there is one inherent risk to that. While teams and fans would view the save, 'save situations' and closers in a more accurate light, there is also the unfortunate risk that they would eventually overvalue the 'hold'."
Also worth reading is Jonah Keri's article published on Page 2 today: "Should K-Rod be AL MVP?"