The best way to find out what your employees want and how to retain them is to ask them.Ask questions to gauge how you're meeting your employees' expectations. Not just "How's it going?", but specific questions to get specific answers. Some questions to ask: How are things going? What makes you stay? What would make you stay longer? How can I help you with your professional goals? Are there new things you'd like to try? Are there things I can do better, as your manager? Are there things you aren't getting out of this job that you'd like to get out of the job? What do you love doing? What would you like to be doing more of?By the way, the only way this works is if you're committed not only to asking the questions but also to listening to the answers and responding to them with more than words. If you can't do that, it's probably better to skip the stay interviews.