Joe Flacco isn't perfect. Study his tape from last season and you'll find a handful of rock-solid starts mixed with a rash of mysterious outings. One week he's shredding the Pittsburgh Steelers, Brandon Moss Cardinals Jersey, crashing the elite-QB conversation; the next he's frazzled and desperate against a weak-sister Jacksonville Jaguars squad on national television. The Ravens have played good defense for so long that Flacco's early-career achievements are sometimes brushed aside.
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