Originally Posted by blandman
I am officially going to stop using WAR.
This is a pretty good primer on some of the little nuances that alter WAR from various places. The stat is still in its relative infancy so there's always going to be slight tweaks in the formula.
I think it reiterates the point that WAR is a nice, easy to guage stat to get a kind of snapshot of what each player's worth is, but it's far from a complete picture. The biggest problem will probably always be settling on a definition of what defines a "replacement level" player for each position.
As long as you're taking your stats from a consistent source, though, you shouldn't have too much trouble.