An unprecedented mass exit of talent that spans industries and continents is among the things Big Law firms are up against as the second year of the COVID-19 era winds down.

A so-called Great Attrition this year has seen more than 15 million U.S. employees quit their jobs since April, with surveys indicating the movement spans sectors and countries, and that around 40% of employees are at least somewhat likely to quit their jobs in the next three to six months.