The concussions are irrelevant unless you have lingering issues from them. When I was working local the agencies knew what they were. The "stepping stones" didn't seem to mind. Those agencies knew they didn't have a lot going on so they knew people who were looking for more wouldn't stick around too long. They seemed fine with it. Where I worked as long as a person stayed the required 1 year, management was fine with a person leaving. the agency had a "core" number of officers who they had to keep just so there was some continuity. It was easy to determine who management thought the core officers were or expected to be. They were the people who were older when hired. Of course the agency I worked for was a decent agency, and if you weren't happy they encouraged you to leave. A happy workforce is much easier to manage than a disgruntled one.
But when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new guards for their future security.
Translation for the intellectually challenged: If the government screws the people too much, it is the right and duty of the people to revolt and form a new government.