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Franchise QBs are the holy grail but successful teams need big-play wideouts and defensive backs too<p>Every offseason, teams desperate to upgrade their rosters turn to free agency for answers. And those answers come at a premium, which predictably leads to fans and media predicting that said …

Read more at CBS Sports: http://www.cbssports.com/nfl/news/free-agent-defensive-backs-can-make-big-year-1-impact-but-receivers-are-a-mixed-bag/