The Red Sox need more than a manager. Looks like they need a starting pitcher, too. And maybe a second baseman. And a reliable power hitter wouldn’t hurt. Injuries already are starting to mount, and Opening Day is more than five months away. Left-handed pitcher Eduardo Rodriguez underwent right knee patellofemoral ligament reconstruction surgery today. The Red Sox announced that Rodriguez will not return to pitching for approximately six months, meaning he will miss the beginning of next season.