Don Hutson ran track at Alabama, he was a 9.8 man back when the world record was a 9.4. His greatness was because of his superior speed, keep in mind he wasn't facing 4.4 cornerbacks back then,
Bullet Bob Hayes changed the way the game is played, obviously his Olympic gold medal speed the difference. But before Bullet Bob there was Bob Boyd a 1950 NCAA 100 yard Champion, he blew by defenders on his way to a 1000 yard season way back then. He was a Ram, speaking of which the Rams Crazy Legs Hirsch was a great Hall of Fame receiver with great speed. And ....Homer Jones beat Hayes in a 200m he was a great speed receiver for the Giants.
When the AFL came into existence one of their first stars was a former 9.6 sprinter, 24 foot long jumping running back Lance Alworth out of Arkansas, The Chargers making a WR out of him. He was incredible, amazing.
The Browns drafted a 26 foot long jumping running back out of Ohio State named Paul Warfield, he'd be switched to WR, Hayes, Alworth, Warfield all Hall of Famers as was...
Bobby Mitchell was a Big10 100/hurdlers champion and the RB to Jim Browns FB with the Browns for five seasons, the classic Thunder & Lighting, well the Browns got stupid and let Mitchell go to the Commanders so they could get Ernie Davis the Heisman winning RB. As a Commander Mitchell became a WR, he had a great career, a Hall of Fame one.
Why was Darly Lamonica called The Mad Bomber, it was because of former Texas Southern 9,4 sprinter Warren Wells (got in trouble with drugs...poof) Then here came 9.2 man Cliff Branch.
Randy Moss, Don Maynard, Terrell Owens, Antonio Brown, James Lofton, Andre Johnson, Henry Ellard, Tim Brown, all speed guys most in the Hall of Fame, Hell, Mark Duper 9.4, Bengals Isacc Curtis 9.3
Today who is anymore dynamic than Tyreek Hill? You got to have a guy who backs safties up, yes the old,,,,,,when he beats me you got him.
Michael Irvin is wrong if he thinks speed isn't a big deal.
Obviously Jerry Rice was faster than his 40 time as is Kupp, maybe nerves, sick....ha!