I remember when we made a huge revenue guarantee to AOL to get the account. We did a best-case scenario projection, a middle of the road projection, and a worst-case scenario projection. Worst-case scenario and middle of the road had us going out of business with the contract. The best-case scenario had us breaking even.
This is a companion discussion topic for the original entry at https://triplebyte.com/blog/marissa-mayer-interview