The Spread Formation is where the offense is based.
Over makes the single-high safety declare the defense’s intentions.
Trips creates a 3X1 alignment to take advantage of vertical coverage voids.
Heavy creates the extra gap in Short Yardage/Goal-line situations.
Double Flex allows for a pin-and-pull on Rocket while forcing Cloud coverage by the secondary in a two-high safety situation.
Over Green sets up an ideal two point combination.
Over Brown is utilized to throw vertical when the defense does not bring a full man over.