Comment by mc32

A company could tell everyone they hired for finance they now are being transferred to research and development and vice versa. Nothing against the law. But people in finance were not hired to do R&D and people in R&D were not hired to do financials. The company could then of course fire the above for not performing --but HR usually never takes this approach to layoffs. They may eliminate departments or redefine things and then you re-apply and so on with new roles and duties but it's all formal. Companies could require employees to re-apply, but you'd see quite some pushback especially from people who have been there a while and may interpret the move as a threat to their job security.