By NATE SILVER <http://fivethirtyeight.blogs.nytimes.com/author/nate-silver/> I’m working on an article about the New York Mets — but that subject is perhaps too depressing for a beautiful Memorial Day weekend. The article, in any event, will focus on the Mets’ attendance and whether there are any signals that the club’s off-the-field problems <http://www.nytimes.com/2011/05/23/sports/baseball/mets-fred-wilpon-puts-his-fans-cap-on-and-speaks-his-mind.html?_r=1>  have begun to hurt [Read more]