Green Bay - For the NFL safety, this is a perfect storm. LeRoy Butler sees the forces colliding. Tight ends are bigger, more athletic than ever. Dynamic playmakers - think Darren Sproles, Randall Cobb, Percy Harvin - are being schemed in cutting-edge ways. And at the NFL scouting combine, the volume of read-option questions directed at head coaches was downright annoying, yet justified...
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