This article by David Ehrenberg answers that question. More and more businesses need this type of individual with CFO skills to run and manage their business profitably. You need more than a tax accountant. The tax rules have changed so much over time that a financial statement prepared for tax returns does not properly give the owner information they need to make quoting and management decisions. Enjoy the article.

https://smallbusiness.yahoo.com/advisor/post/125865833997/ask-potential-cfos-these-questions-before-bringing-them