The Giants took a huge step backward from their World Series title. Old age and hitting deficiencies caught up with them, and their anemic offense wasted a bunch of pitching gems. The goal is to rebuild the offense so all that solid work from the rotation and bullpen isn't wasted again.ARRIVALS: OF Angel Pagan (trade with Mets), OF Melky Cabrera (trade with Royals).DEPARTURES: OF Andres Torres (traded to Mets), RHP Ramon Ramirez (traded to Mets), LHP Jonathan Sanchez (traded to Royals), INF/OF Mark DeRosa (free agent, signed with Nationals), RF Carlos Beltran (free agent, signed with Cardinals), OF Cody Ross (free agent, signed with Red Sox).FREE AGENTS: LF Pat Burrell, SS Orlando Cabrera, 2B Jeff Keppinger.ARBITRATION-ELIGIBLE: None.MEDICAL WATCH:--C Buster Posey (fractured left leg, torn left ankle ligaments) will continue his rehab throughout the winter and expects to be the Opening Day catcher in 2012.--2B Freddy Sanchez (right shoulder surgery in August 2011) expects to be healed in time for spring training.