Giants Rumors: Penny, Molina, Posey

The latest on the Giants, who trail the Wild Card-leading Rockies by just a game:

• Brad Penny gave the Giants more than they could have expected in his return to the NL, as Dan Gelston of the AP notes (via the Miami Herald).
• ESPN.com's Keith Law would like to see the Giants play Buster Posey enough down the stretch to prepare him for a starting role in 2010. They could then let Bengie Molina walk and spend on another bat. 
• Henry Schulman of the San Francisco Chronicle wonders if the Giants are trying to "light a fire" under Bengie Molina.