No zone coverage can hold up against a good passing football team if you don't pressure the quarterback. Bob Davie: The key is to call the right screen against the right defensive coverage.

If it's a running down, you probably void it completely. Send in your Football 101 questions. Bob Davie will answer a few of them next week. More from ESPN ...

Even in the years when Notre Dame gets on track, they don't have the talent to hang with the true cream of the college football crop. It was true under Bob Davie, it was true under Ty Willingham ...