During the 2010-11 offseason Yankees general manager Brian Cashman boasted to industry folks about the extension he had just given to manager Joe Girardi. Coming off a 2010 campaign in which he seemed to revert to his tense ways of two years prior and with the Cubs having retained interim manager Mike Quade Girardi had to settle for a modest raise from $2.5 million annually to $3 million. The Yankees are missing the playoffs this year for the first time since that 2008 season when Girardi took over for Joe Torre. Nevertheless this time around Girardi figures to have the upper hand. It isn’t the perfect storm — that would involve a 2013 Yankees championship — yet many existing factors work to Girardi’s advantage: 1. He’s coming off a season in which he has received a great deal of credit deservedly so in The Post’s opinion for keeping the Yankees afloat when they fielded their worst roster in a generation. 2. With the Yankees losing Andy Pettitte and Mariano Rivera to retirement Robinson Cano facing free agency and Alex Rodriguez’s situation in flux thanks to the 211-game suspension he’s grieving against Major League Baseball the club has no interest in creating another question about its future. 3. The Cubs Girardi’s hometown favorites and a team for which he played twice might have an opening in the manager’s office. They’re expected to announce the status of incumbent Dale Sveum a teammate of Girardi on the 1998 Yankees as soon as Monday. Add these up and you get a giant “Cha-ching!” in Girardi’s favor. “It’ll probably happen fairly quickly” Girardi said Saturday before the Yankees and Astros faced off at Minute Maid Park of his upcoming talks with Yankees ownership and management. As for a resolution he said “I don’t like things to drag out I can tell you that.” If anyone drags this out though it will be Girardi. An active union participant in his playing days Girardi knows how to use free agency to his advantage which is of course his right. Six years ago Girardi accepted the Yankees’ offer to succeed Torre only after playing the Yankees and Dodgers (who wound up hiring Torre) against each other to jack up his price.