By Andrew Baggarly abaggarly@mercurynews.com SCOTTSDALE, Ariz. -- At the World Series victory parade inNovember, when hundreds of thousands of Giants fans gathered to experience amass intoxication of joy, Buster Posey remained as stoic and soberas ever. "Let's enjoy this today, tomorrow, maybe a week or a month "...then let's get back to work and make another run at it," said the23-year-old catcher, punctuating it with the most famous podiumslap in Giants history.