Asking certain types of questions could result in rejected candidates claiming that the decision not to hire was based on biased information rather than job-related considerations. We recommend looking at your state’s protected class list to be sure you don’t run afoul of it.
What more do unsatisfied employees want? That depends. The best way to learn what your employees want is to ask them. We can’t stress this enough. Check-ins with managers are an ideal time if both managers and their direct reports are comfortable having such conversations. Anonymous surveys are another option. If nothing else, conduct exit interviews.