What's missing for me here is the company's side of the responsibility. It's one-sided to depend on employees to give up opportunities for advancement in favor

What's missing for me here is the company's side of the responsibility. It's one-sided to depend on employees to give up opportunities for advancement in favor of a company that would not be as loyal to them. There are two things I think companies should do: 1) Make sure people have sufficient opportunities for growth. Honestly look at each person and make sure they're getting what they want for their career and their life out of it. Hopefully, a company can find ways to make sure people are always advancing in knowledge, skill, and capability. When they can't, they should be open about that and either find another way to make it up to them or help them find something that's a better fit. 2) Always be planning for succession. An important job of managers is to make sure employees are growing according to their capabilities. They should know who the best fit is to replace them and be grooming that person to be able to step into their job.