Running out of cash would be my biggest nightmare. Many companies have a yearly cash forecast built up by month, but also supplement it with a 13 week cash flow projection. Some of the things they're doing to help them manage cash are: expanding lines of credit and other debt facilities and managing accounts receivable and accounts payable days outstanding in order to speed up the cash flow cycle. Additionally, many with companies in the start up and growth stages are always working on their next round of funding to insure the company won't run out of money.

Secondly, ensuring the right financial people are hired and retaining them Finding good people is always difficult and networking with peers seems to be the best way to find good people in financial circles. Retaining good people requires proper training and a good CFO should be giving adequate time to this.

This is one of the standard finance interview questions and can be given at any finance job level. Step back and give a high level overview of the company's current financial position. Highlight something on each of the three financial statements. Income statement: growth, margins, profitability. Balance sheet: liquidity, capital assets, and credit metrics. Can flow statement: short term and long term cash flow projection, and need to raise money or return capital.