That position they'll "fill tomorrow"?
Still vacant after 8 months.
Watch the panic:
-> Emergency meeting with HOD
-> Sudden performance appreciation
-> Discovery of "promotion possibilities"
-> Remember that bonus they "forgot"?
They need you thinking you're replaceable.
Because surgeons who know they're valuable are expensive.
Your resignation letter is the only performance review that matters.
Their panic tells you everything their words tried to hide.