We're having a debate at work about promotions, office structure, etc. Basically, the way my boss works it is that you start with the county at Planner I (or II or wherever you happen to get hired) and then every year and a half or so, you move up the pay scale. So if you are with the department for a year and a half, you move up to planner II. After 3 years, you move up to planner III, and so on. After a number of years, if everyone stays with the department, there is a chance that we'd have 6 senior level planners.
I know that other places have a set number of senior planners, a set number of associate planners, and so on. How do other places do it? Pros and cons of each?