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          San Francisco Giants' repeat problems

          Will Buster Posey ride in another parade in October 2011? It could be a tough road. Getty Images
          Jan 11, 2011
          • Dan SzymborskiSpecial to ESPN.com
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            • Creator of ZiPS projection system
            • Founder of Baseball Think Factory
            • Contributed to ESPN since 2010
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          The 2010 San Francisco Giants had an amazing playoff run -- but doing it again in 2011 is going to be somewhat of an uphill battle for four main reasons.