Most CFOs have run into this problem: they wait endlessly for employees to submit expense reports, and then they’re blindsided by charges that go beyond what the company has budgeted for. What’s the solution? Is it better to have employees use their personal credit cards for company expenses—even though management won’t know how much liability is outstanding until expense reports are submitted—or should employees be given corporate cards, providing real-time transparency around exactly how much is being spent, and where?