If revenue doubled tomorrow, what would break first?

What a great question. I have not started my business yet. I'm still trying to get all or most of my ducks in a row. But, if I had to guess, I would say being under staffed. I would hate to lose momentum because I did not have the right team in place to handle it. Hmmm, Now I have a question, could this be why so many companies are posting job openings and don't seem to be hiring? Because they want to have good options on file if they do need to hire, in the future, they will be ready to go.