chrisfont9 said:
That plus the flawed logic that, in the 7th inning, it was clear that this would be the biggest confrontation of the night. I can think of numerous scenarios that could have developed later in the game, at which point the Sabermetricians would probably complain that the Sox failed to use their best guy in the biggest moment. Unless you can see into the future, it's hard to say (before the 8th inning anyway) that NOW is the key moment of the entire game. [I think in the 8th you can start mapping out a plan that gets you through 9.]
No one has said anything remotely close to the first sentence. (Frankly, the fact that you would express it in these terms is a pretty clear indication that you're out of your depth here.)
There are really three separate questions under discussion here:
1) Was there a seventh-inning AB (either Descalso or Carpenter) that was of high-enough leverage that using the top reliever was theoretically optimal?
2) If so, was there a realistic opportunity for Farrell to anticipate this situation far enough in advance in order to give Koji enough warm-up time?
3) If so, do the benefits of this approach outweigh the downside of monkeying with the comfort factor of the relievers' well-defined roles?
My answers would be:
1) No for Descalso, Yes for Carpenter
2) Yes - but this would have involved letting Lackey pitch to Descalso, or even (shudder) using Morales, rather than burning Breslow
3) Maybe - it's one of those soft factors that none of us are in position to evaluate with any degree of confidence, particularly in a non-elimination game
Given 3), I'm not particularly inclined to waste time giving an extended defense of my answers to 1) and 2). But I will certainly say that people who are objecting to Koji in the 7th on the grounds that "there might be an even higher-leverage situation later!!11" are missing the point entirely, and would be well-advised to go read some of the widely-available literature on the notion of leverage.