I think the term "career politician" will trigger negative association in pretty much every country these days.
What if politicians couldnt be active in politics for more than a fixed number of years?
For example 8 years max for a Minister, Senator etc. This could be extended if someone would move into a presidential function after that, but otherwise out with them.
This way you would keep things "fresh" and make it hard for them to stay in office forever and keeping seats filled for decades, which is potentially also damaging to a country and it's people.
What do you think?