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Some of the greatest quarterbacks in college football history failed as NFL signal-callers because they lacked the mental or physical traits to be successful at the game's highest level. Scouts must identify key attributes to overlook the hype and build an understanding of what translates.

Andre Ware, Ty Detmer, Gino Torretta, Danny Wuerffel, Jason White, Matt Leinart, Troy Smith, Tim Tebow and Robert Griffin III left college as the some of the greatest to ever play, with the hardware to prove it. Each disappointed in their attempt to lead pro offenses, though.

A prospect's previous accomplishments mean nothing once he leaves his chosen institute of higher learning. All that matters are the natural tools that made him great in the first place.

So much of an individual's success depends on factors beyond raw physical skills. Certain baseline tools are necessary, but there are always outliers, and prospects shouldn't be overlooked based on outdated and even superficial standards.

Perfect quarterback prospects don't exist. Each of the incoming top signal-callers has their strengths and weaknesses. Understanding where these individuals succeed will help determine whether they can do the same in the NFL.