Let me get back to the two-receiver route.
The way the Cowboys defended it successfully against the Bucs.
It was born out of two concepts that I've noticed in Wade Phillips' defense:
The inverted cover 2 and the drop-kick call.
The play against the Bucs where both CBs actually have more depths than the two safeties (resulting in an INT by the off-side CB Jenkins) is clearly of the inverted cover 2 gene.
The drop-kick call, as I had mentioned before, involved only two main players: the off-side CB and the safety.
Since I've already had this example in the INT against TY Yates, I thought I'd bring it up again.
By now, I think I had given at least a glimpse of how the concept works.
This is the diagram I had drawn and posted some time ago: