Ms Penchan added the chief financial officer should understand what all the operating units in the company actually do.
Tanachai Bunditvorapoom, the head of investment banking at Tisco Securities, said the chief financial and chief executive officers should work together since projects often require rapid adjustments.
"Companies should diversify their funding to several banks, not sticking with only one loan, and consider other financial instruments such the capital or bond market," he said.