Brad Maynard of the Chicago Bears punts the ball against the New York Jets on Dec. 26 at Soldier Field in Chicago. The authors of Scorecasting say statistics show that running a play on fourth down instead of punting can be more effective at getting points, contrary to common belief. Jonathan Daniel/Getty Images Sport hide caption

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A fan dressed as Robo-Malu, inspired by Troy Polamalu of the Pittsburgh Steelers, waits for the AFC Championship game between the New York Jets and the Steelers on January 23, 2011. Ronald Martinez/Getty Images hide caption

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Chicago Bears quarterback Jay Cutler stands on the sideline in the third quarter after leaving the game with an injury against the Green Bay Packers on Sunday. His decision to sit out of the remainder of the game, which Chicago lost, made Cutler the target of critical Tweets from his peers in the National Football League. Jonathan Daniel/Getty Images hide caption

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Donald Driver (#80) and Ryan Pickett (#79) celebrate after the Packers iced a 21-14 victory over the Chicago Bears in the NFC Championship Game. Andy Lyons/Getty Images hide caption

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Fitness pioneer Jack LaLanne, seen in this undated photo, was inspiring TV viewers nationwide to trim down and pump iron long before exercise became a national obsession. AP hide caption

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