If you employ people, the reality is that employees will come and go. It is extremely rare that someone will take the entire business journey with you (or that you should want them to). A good company still experiences 10-15% turnover each year. One of my old bosses once told me that "The only certainty he had was that he was there at the beginning and would be there until he sells out or hands off the reigns to someone. More than likely, just about everyone else will come and go at some point. All you can do is strive to maximize the mutual benefit of the employer-employee relationship while they are here. You want to create an environment where good people want to stay, but accept the fact they will eventually leave, often for reasons beyond your control.” At the time I thought this was a bit cynical, but I see his wisdom more clearly many years later (Note: I left).