Originally Posted by Brutus
I think it's worth noting that WAR is not technically "best player" but rather best player relative to his position.
If you truly wanted "best player" you'd have to remove the positional adjustments from the equation.
Now, perhaps that makes it a good metric to determine "value" but I do think there's a difference between best player and 'most valuable.'
Replacement level offensive production is not equal across positions. If you take that positional adjustment out, you'd just have to make a defensive adjustment instead. Because replacement level defense is very easy to come by; replacement level offense is not.
In other words, to look at everybody's production as if they were coming from the same pool of players from which they might be replaced, you have to make the positional adjustment.