“Everyone has a plan until they have been hit.” It’s a quote credited to Joe Louis. Others credit Mike Tyson for it. Regardless, those who have been hit before, those who have gone into the ring know the brutal truth in that statement – doesn’t matter whether it is a sparring ring or the business ring.
You want to destroy your competitor’s plan? Hit them where it hurts mortally. Then see how their plans crumble. Then it becomes a matter of survival, it’s no longer a competition.