Barbara Fischer, Australia./Getty Images Lilian Weng is rejoining OpenAI after saying she was leaving Thinking Machines Lab for health reasons. The move has sparked conversation about what to share when departing from a company. Career experts advise rank-and-file workers leaving their jobs to be careful about what they share. Explaining why you're quitting a job can be tricky, especially if your plans change soon afterward. Lilian Weng announced on Monday that she was leaving the AI startu...