One of the most frustrating things a defensive lineman can face is letting a QB break contain. I have nightmares about this! That's why for this week's D-Line Examples I'll be breaking down how to corral elusive quarterbacks. Tip #1: Rush as a unit The most practical way to corral an elusive QB is to apply pressure without giving him anywhere to scramble. To do this your D-Line has to understand their responsibilities and rush as a unit.