Coverage Shells
In the following, "cover" refers to the "shell" that the defense rolls into after the snap of the ball, more specifically the number of defenders guarding the deep portion of the field.
Read more about this topic: Zone Defense In American Football
Famous quotes containing the word shells:
“It is not easy to make our lives respectable by any course of activity. We must repeatedly withdraw into our shells of thought, like the tortoise, somewhat helplessly; yet there is more than philosophy in that.”
—Henry David Thoreau (1817–1862)