In Sammy's case, he's old-fashioned. He brings a lunch bucket, and he goes to work. Nothing fancy about him. When asked what makes Knight so formidable, Rick Venturi, who coached the Saints defensive backs in 1998, pointed to the intangibles. You should time him in the 38, not a 40, because you've got to give him two steps of anticipation.
Instincts are a talent.
Everybody looks for all the measureables. But in reality, instinct is something you can't coach. You can help a guy with technique. You can help a guy with preparation, but instincts are basically inherent in a guy's ability. And Sammy has great instincts.