The Giants' offense has struggled at home this season, and nobody puts it in perspective like Buster Posey. Others can say it's the dimensions. Or the elements. Or the anxiety. Or the uniforms. Posey's explanation: "Just one of those things." And he meant every word. Keeping it simple is a way of life for Posey, who rarely shows emotion or trepidation between the lines or in the clubhouse, and Saturday's 9-3 victory over the Rockies was no exception.