Many companies expect you to be acting at the next level before you get promoted to it. This practice exists to prevent the “Peter Principle,” in which people are promoted to their level of incompetence. It also signals that there’s room for another person acting at that level on the team. Keep this in mind as you think about your team’s careers. If there is no growth potential on your team because there’s no room for people to work at a more senior level, it may be a sign that you need to rethink the way work is done in order to let individuals take on bigger responsibilities.