So you have a leaky faucet. It drips, drips, drips until eventually you have allowed a corroded pipe and a higher water bill. Not investing in the development of your interview process can work in much the same way. 
The overall health of your company relies on capable people. The actual hiring of these people is a simple yes or no question. The real work of staffing begins with a strategic interview process and a well trained interviewer. Without this, you may begin to erode the inner workings of your company.
- Begin with the job ad. Really describe the ideal person for the job.
- Create a new job description
- Select and prep the interview team
- Prepare a communication process that is respectful to candidates.
- Determine criteria for selecting the top candidate and define a system to communicate with those who were not chosen.
By approaching your new hire from a well defined and strategic position, you will make better decisions and hire staff that will strengthen your company. Any process that skips these critical steps will simply corroded your pipes. Drip, drip, drip.