I have a question about something I've been asked to do by my area manager. I manage a branch supply house and have an employee answering phones and doing clerical work. She's not great on the phone and my manager has a problem with that. He wants me to start interviewing for a replacement but I have never been in a situation where I have been asked to replace a person who is day-to-day mission critical and have the employee know I am interviewing for the position. If I discharge the employee it could take a couple of weeks or longer to find the right candidate and then another if he/she gives the current employee 2 weeks' notice and that 3-5 weeks could very well frustrate customers beyond what I'm willing to accept. How would you handle the job posting and interview process?