Originally Posted by
DrJekyll MrHyde
To answer your question, yes, vacancies occur during growth (and displacements can happen simultaneously though usually not in great numbers).
My real question was, is there a contractual periodic base bid (monthly, quarterly, annually, etc) when no expansion/hiring is occurring or are you stuck in a base until expansion occurs? If not by a system bid, is there another mechanism for domicile trades to take place?