According to Saints Director of Sports Science, Alvin Kamara's acceleration is....

sfidc3 said
Fantastic article, and something I've known for a long, long time.....

Sometimes players are both straight line fast and quick, and sometimes they are straight line fast and not that quick.....straight line speed does not equal quickness, not by a long shot.....It's why so many of the great WRs weren't "burners".....40 time isn't a useless metric but it is the most overused, overhyped, overrated one.....10 yard acceleration and how quickly one can change direction is the absolute key....IMO....
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Even the first step quickness is more important than straight line 40 yard time when you're lined up head to head with someone. Whoever wins the first step gains a big advantage blocking, hitting a gap, filling a gap, and getting open on short yardage passes.