I'm not sure there is a right answer here, it depends what you believe in and what perspective you choose to take. Personally, I don't like the 100 pitch threshold for pitchers in their peak years and I hate defined bullpen roles and switching relievers for the sake of switching relievers. If you believe in defined bullpen roles, I have no problem with your opinion on it, most people like the whole "each reliever has his own inning" concept. I personally subscribe to the "use your best pitchers in the best situation" theory. You have a couple of choices: You can take Narveson off of 90 or so pitches, who is throwing well, but as we all know is susceptible to blow ups. Couple that with playing on a glorified little league field. Or you can go with the combo of K-Rod and Ax who are two of the best relievers in the game this year. You play the percentages in my opinion and go with what historically works. Hopefully this doesn't matter, cuz this dude is IMPLODING for the Dbacks.