Here is an article from the Wall Street Journal talking about Olympic athletes who take a five week break from running in order to improve their performance. I agree that a five week respite will work for someone who has the resources to get back in shape and whose livelihood depends on it. Since running is his job, it makes sense for him to take this break. Think of it as a vacation from his job. How refreshed do you feel after your vacation?
However, I believe that for us mere mortals, taking this kind of break will be more detrimental than helpful. Taking a day off to rest your legs and knees is important, but if someone decides to skip working out for a month because of this article, they may be headed for trouble.
Just remember that everyone’s training will be different and what works for them may not work for you.