I would say they should try listening to workers about what's bothering them but in general there's not enough trust for that to happen honestly. Lots of companies have tried using anonymous surveys but very few trust that they're actually anonymous. They've tried using "independent third parties" but since those companies are paid by the employer, there's very little trust that identities will be protected, which could lead to retaliation. The irony is that there does exist a type of entity that could get to the heart of what's causing so many workers to leave: the union. Of course, the union discussion involves many more issues than just being a place where workers can be honest about their issues with the employer, but if employers want to stop the bleeding of labor, they're going to have to figure out what's really the issue. Not sure how they accomplish that without trust.