Re: Should we trade Mes & keep Grandal?
A bird in the hand. Unless you're somebody who is otherwise unattainable (e.g. Felix Hernandez), Grandal is the chip. I get where you're coming from, but I think that's getting a bit too cute.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.