I read the article and learned something new. Non political (aka career) Members of the NSC are deputized from their parent agencies - FBI, DOJ etc. Those that are removed return to their parent agency to continue line work.

And these are not some line DMV workers. They are high officials. It's not nearly as alarming as the headline makes it sound. I think it's fair for a new elected political leadership to expect high officials to be aligned with the policies they were voted in on.