Kate Purchase will exit the Prime Minister’s Office (PMO), where she has been executive director of communications and planning, at the end of the week. Her new job as a senior director in Microsoft CEO Satya Nadella’s office involves working on “communications and other vehicles.” (CBC, National Post)

Talking point: Turnover within Trudeau’s PMO has been low, but significant changes are now afoot. Another such aide, executive director of policy Mike McNair, is departing at the end of the year. Several senior advisers have also been dispatched to cabinet offices as chiefs of staff, including Ryan Dunn for Innovation Minister Navdeep Bains; Elder Marques, who also previously worked for Bains, for Finance Minister Bill Morneau; and Mathieu Bouchard for Heritage Minister Steven Guilbeault. Purchase isn’t the first member of Trudeau’s inner circle to depart for a job in Big Tech: in August, former ambassador to Washington David MacNaughton, a close adviser to the prime minister, was named president of the Canadian branch of controversial Silicon Valley data firm Palantir.