Quote Originally Posted by M2 View Post
I'm with lollipop, you can measure his raw impact on the current unit, but I don't think it really means anything.
In a way your post (from which the above point was taken) kind of argues in favor of the alternative conclusion. By this I mean that measuring the impact of Hernandez relative to the current iteration of the roster informs (or should at least in my view) subsequent decisions.

For instance, if the goal is the playoffs, the addition of Hernandez probably just eliminated a lot of potential options (like adding an Izturus or an Everett as the O's and Tigers have recently done) or if it hasn't eliminated them it signals the need for a huge upgrade somewhere else.