Count me among those who don't see Wagner as irreplaceable. I think the Mets will be fine without him for the next 19 games, while they can still carry a 40-man bullpen. It's in October (if there is an October) that his absence will become more of a problem. Whichever pitcher takes his spot on the post-season roster will probably be a downgrade. (I'd speculate on the exact configuration of the post-season bullpen, but I'd prefer to wait until the magic number drops a bit more.) As for Maine, with the scattered off-days in the NLDS schedule, it's possible that the Mets can play five games with only three starters. (Santana, Pelfrey, and Perez.) If they advance to the NLCS and the World Series, then they'll probably have to use Pedro. It's noteworthy that, if Maine was healthy, then Pedro Martinez would be a decent bet to miss the post-season roster.