is if BK is "helping" coach the defense this week. If he stays home and sticks to the offensive side of the ball, then the D will be fine. The offense will suck again, but the D will be fine.
If he decides his experience is needed on the D side this week, ND is screwed. Be prepared for guys playing soft and reading, reading, reading and then reading some more, while Navy's Oline kicks their teeth in.