Steelers' Martavis Bryant tops list of best NFL prospects

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The best NFL organizations don't just find talent at the top of the draft. They find talent with their later picks and their undrafted rookie free agents. Last year's Super Bowl was the greatest possible advertisement for the importance of later-round picks. One starting quarterback was drafted in the third round, the other in the sixth round. Three of the six receiving touchdowns in the game were caught by undrafted players -- Danny Amendola, Doug Baldwin, and Chris Matthews -- with a fourth coming from former seventh-round pick Julian Edelman. The Seahawks got half of the Legion of Boom in the fifth round: Kam Chancellor in 2010, Richard Sherman in 2011. And the player who saved the day for the Patriots was an undrafted rookie out of West Alabama, Malcolm Butler.