Here's an interesting story in NFL.COM about the importance of quickness
as measured in the short shuttle and how it may be more meaningful than sprinter speed for determining abilities for some positions:
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"There's a reason David Pollack at just 6-foot-2 and 265 pounds with short arms had 36 sacks, 117 QB pressures and 58 tackles for a loss. He is relentless on film, but he also has extraordinary quickness and COD. I promise you a defensive end with 4.50 speed can't play as fast as David Pollack. Barrett Ruud is up against a number of linebackers with a faster 40 time but his field quickness is a big reason he finished his college career with 432 tackles.
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http://www.nfl.com/draft/story/8313818
as measured in the short shuttle and how it may be more meaningful than sprinter speed for determining abilities for some positions:
****
"There's a reason David Pollack at just 6-foot-2 and 265 pounds with short arms had 36 sacks, 117 QB pressures and 58 tackles for a loss. He is relentless on film, but he also has extraordinary quickness and COD. I promise you a defensive end with 4.50 speed can't play as fast as David Pollack. Barrett Ruud is up against a number of linebackers with a faster 40 time but his field quickness is a big reason he finished his college career with 432 tackles.
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http://www.nfl.com/draft/story/8313818