How do you know you aren't going to be relying on Bruney to set up? Look at Farnsworthless' career stats. If you charted his ERA on a time graph it would look like a sine wave. Proctor goes from suck to solid overnight at age 29. That is my point. Outside of guys like Mo and Hoffman, you never know who's going to be good or bad from year to year. All of these guys, Sox and Yanks, aside from Rivera, are a crapshoot.
Now, I'm not suggesting you shouldn't be confident about your 'pen, but at least be consistent. Apply the same filter where you ignore the inconsistency and recognize only the good for the Yankee relievers to the Sox 'pen, and it won't look as bad as you claim it does. And, sure, yours looks better, but it's mostly because of Rivera. That said, I'll take our starting 5 w/o a known closer over your 4, well more like 3, and a shutdown closer (speaking of which, we had 3 and the best closer in baseball last year - which was a resounding success [/sarcasm]).