The whole point of a having a backup plan is for when the primary plan isn't working :S
c/when/if
When your primary plan isn't working, you fix that first. Ideally, the backup plan is never needed.
If your house is on fire, you don't start building a second house, you put out the damn fire.
Also, it would be pretty dumb to put a backup in place more dangerous than the original. It would be like building your second home inside a volcano.
The whole point of a having a backup plan is for when the primary plan isn't working :S