I am interviewing four people for a classified postion. Two are over qualified and will be dissatified, and will not last. I want to be fair but I don't want to waist time and rescorses on people that will not fit in. what interview questions wou

I am interviewing four people for a classified postion. Two are over qualified and will be dissatified, and will not last. I want to be fair but I don't want to waist time and rescorses on people that will not fit in. what interview questions would you suggest that would reveil their true ambistions