[RunItUpTheGut]

7 on the line with 1 or two linebackers equals.......in the box how many???????

Depends on how far the linebackers are walked up or comes in a blitz. Which also usually gets said after the play.
For example "perry had 6 on the line and brought both linebackers". It's really not that hard to picture.
But by all means, educate us. Don't tell us what we already know. Give examples. Tell us the schemes. Tell us if the line twisted or the linebackers dropped into a coverage. I imagine with Whitleys passing "threat" perry didn't bring the secondary often. But there were obvious holes in that secondary that Whitley failed to take advantage of with dropped passes.