CHICAGO — In a sport where just about everything can be bottled up into a metric of some kind, a catcher’s impact on his pitching staff may be impossible to measure. There are framing stats, sure, but that is only part of it. Access the Yankees beat like never before Don’t miss Greg Joyce’s text messages from The Bronx and beyond — he’s giving Sports+ subscribers the inside buzz on the Yankees. “They deserve a lot of credit for the run prevention,” said Cole, who brought up the catchers unprompted after throwing six shutout innings against the White Sox on Tuesday night. “Obviously we have good pitchers, but they’re back there doing a lot of prep for us and making a lot of the right calls and getting us out of jams.