I was reading the SI.com Power Rankings (please quickly skip past #1) and they always have interesting stats, player profiles, recent trends, etc for each team.
This week's ranking ( http://sportsillustr...13_a2&eref=sihp ) had this for the Cubs:
The Fielding Bible ranks Cubs catchers as the game's best defensively, having saved six runs this year. Closer inspection shows that all of those runs are credited to the backstop play of Welington Castillo, helping explain why he plays twice as much as Dioner Navarro despite an OPS that is 273 points lower.
WHOA. That's freakin awesome for a guy who I thought was going to be an offense-first catcher. Time to start up the Castillo for Gold Glove train!
I wasn't able to find the actual writeup, so I'm assuming it's only in print. Bummer.