You open all of them. Don't lie.
I'm not campaigning for Mussina. I'm pointing out that pitcher win/loss is, at best, useless and, at worst, misleading.
I'm pretty sure that both you and tec would agree that, in one season, an 18 win pitcher isn't automatically better than a 16 win pitcher. Over 20 or 25 year careers, a couple wins here and there (and holding on for a couple extra ****** seasons) gets one pitcher to the Hall and one excluded, without a meaningful difference in performance.