vick's quickness was more important than his speed.
he was blazing, don't get me wrong, but so was young, white, cam, pryor, johnny football, etc.
but his quickness to change direction was elite for any position. only qb off top of my head that comes close is probably kyler murray. his quickness was more a threat than his outright speed. he'd go from standing tall in pocket to a full sprint in a flash and be 5 yds downfield before anyone else registered he left pocket. vick was that way too.