Read the defense pre- and post-snap
Safeties split the field at 15 yards — identify the coverage and weak spots
One safety over the middle — is it Cover 1, 3, or 4? Where's the hole?
DBs play off coverage — run hot routes against this soft look
DBs are in press alignment — predict the route combo and react
Safeties disguise their rotation post-snap — get to your hot route fast