How bad were Adam Everett and Brad Ausmus?

Those of you who have been reading for a while know that one of the things I like to talk about is the history of the Astros, as seen in my Random Random Astro, Random Trade Tree, and historic scouting report posts. One thing I've been thinking about lately, prompted by many comments on other posts on this site, is whether or not the Everett/Ausmus black hole reputation is deserved, and if so, were they able to make up for it with defense, which is the counterpoint to the widely held view of their worthlessness.

Ausmus and Everett were teammates from 2001 to 2007, though Everett was only a regular from 2003-2006. Over that period, we'll look at offensive value and defensive value. I have no…