My favorite was outlined in https://www.amazon.com/First-Break-All-Rules-Differently/dp/... - namely treat different kinds of jobs as different skillsets and take away the perverse incentive to switch to one you might not be qualified for. Specifically, moving from being an individual contributor to a manager should come with an immediate pay cut. (With opportunities for a pay raise down the road if you prove competent.) And there should be a promotion track for individual contributors. Furthermore, most managers should manage someone who is higher paid than themselves.
When the perverse incentive is taken away, people are more likely to switch jobs because they think that they will be good at the new job, and not because they want to be important, well paid, or whatever.
But this does require a mindset from managers that they are in charge, but not necessarily more important. Which is a cultural shift that is easier in some organizations than others.