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Darrelle Revis

Recipe for successful secondary has eluded Ravens

Recipe for successful secondary has eluded Ravens

The Seattle Seahawks built the NFL's most revered secondary through the draft, nabbing can't-miss safety Earl Thomas and late-round gems Kam Chancellor and Richard Sherman.

In winning Super Bowl XLIX, the New England Patriots relied on "rental" cornerbacks Darrelle Revis and Brandon Browner, and a previously unknown and undrafted rookie named Malcolm Butler. The New York Jets spent nearly $150 million this past offseason to strengthen the back end of their defense.

There's seemingly no surefire recipe for success in building an NFL secondary, but one thing could become abundantly clear when the Ravens face the Arizona Cardinals on Monday night at University of...