The secondary is late reacting to the play.
Can argue if it is the scheme and if the scheme can be adjusted.
Or the players aren't just a good fit. Someone like Marcus Peters, probably a better fit as he can read/react better in his prime. Some of it is game feel.. some of it is game/player studying. Read/React requires alot of film studying and knowing each receivers tendencies. Not sure what goes on in film room, but maybe a combo of preparation and skill set fit.
