"I would like to [talk to him]," Castillo said Wednesday. "I'd like to get everything I can from him. ... He's a great player, and he becomes better and better every year, so why not learn from him?"
Cubs coach Mike Borzello has Castillo, in his first season as the full-time catcher, watch video of Molina to learn more about how to handle the position.
"I think he's learned," Sveum said of Castillo. "Calling games is completely different because that comes and goes with each pitcher's stuff. You use Yadi as the cornerstone guy to watch on blocking and, obviously, throwing. Welly has one of the quicker releases in the game, if not the best, but you watch, and you watch video of [Molina]. That's the cornerstone guy you watch and try to emulate."
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.