How are companies actually reshaping jobs as AI spreads?

When generative AI enters the workplace, firms don't just hire fewer people—they reorganize work itself. This study analyzed millions of U.S. job postings to measure AI exposure at the task level, then tracked how companies adjusted. They found firms split the response: moving half the AI-exposed work to different job categories and redesigning the remaining tasks within existing roles. Senior positions shifted mainly through hiring reallocation, while junior roles adapted through a mix of both strategies.