Structured and unstructured interview approach

Imagine you own a home improvement business that is trying to keep up with increased demand and is rapidly growing. You need to hire several new employees in key roles, including finance and human resources. You want to make sure you get the hire right the first time. Explain whether you will use an unstructured or a structured interview approach in hiring your workers. Explain your rationale and the expected effect on your business. What concerns do you have about the process?