I don't think there is any one answer. Any economics professor will tell you that diversity is the basis of a sound economic structure, just another way of saying don't put all your eggs in one basket. Alberta is a good example of that. Many of our provinicial governments have tried to insulate the economy from "earth shattering hits" like the oil bust in the 80"s. Since then we have seen new industries spring up, even though the bulk of our economy is still oil related.
Taking this to an individual level, as a career coach, I have always encouraged a plan B, C, D, etc. I agree with you Pam that the fall back for many of the Weekender reps will be the network that they have created to be successful in the first place. I also wonder if any of these reps would have also taken on other direct marketing products, ie Mary Kay, Avon, etc. If you like to sell, one product may not be enough. They would have done exactly as the provincial government or any good mutal fund manager.
This reminds me of a story told to me by a former colleague at Mount Royal College in Calgary:
There are two kinds of people in the world, beige people and technocolour people.
Beige people look only at what is put in front of them, accept news at face value, don't look up too often from the sidewalk. Technocolour people are acutley aware of their environment, they look left and right, they not only read the first page of newspapers, but among other things, the business section, news and industry magazines and attend lectures to synergize information. They notice the passing of the seasons.
Following 9/11, the technocolour people found other niches to invest their talents to find success. I guess what I am trying to say is that success in found within the human spirit. We can all be dealt that earth shattering blow at any time. When your time comes, the surviviors will reach deep inside them for that spirit, courage, and the support of true friends. I had the pleasure of re-affirming that this week.