I’m not sure term limts on Congresscritters goes deep enough.
All of these guys have a staff to help them. A “permanent” staffer could work for various congressmen over the years and become experienced in their job.
A new congressman comes in and hires the experienced staffer, because he’s experienced, and takes his advice.
What we’d end up with (and probably have now to some extent) is an entrenced bureaucracy of permanent staffers who are the real power behind the elected officials. These would be people the voters can’t reach to replace.
There is no ‘probably have now’, it exists now with certainty.
There is a permanent class of Congressional and Executive hacks, and their revolving door lobbyist counterparts that control a large percentage of all policy. regulations, amendments and associated details and interpretations.
When a bill is introduced in Congress by an elected member or by the President’s people, the bill is edited, amended, reinterpreted, reworded to the point that often the original intent is hardly recognized by the originators. Most of such changes are made by permanent staff with inputs from lobbyists who represent special interests.