The legendary Apple design team hasn't had much luck holding onto leadership since Jony Ive left, and with COO Jeff Williams retiring, the leadership role will shift to CEO Tim Cook.

Apple Chief Operating Officer Jeff Williams announced Tuesday he’s retiring after 27 years with the tech company.

Apple just made a major leadership move—naming Sabih Khan, a long-time insider of Indian origin, as its new Chief Operating Officer (COO). He takes over from Jeff Williams, who’s retiring after nearly three decades at the company.

Here’s the outgoing Apple COO and defacto head of design recounting the time that Steve Jobs willed a scratch-resistant display into existence after the original iPhone was announced with a plastic screen.

Sahib Khan, a long-time Apple veteran, will take over for COO Jeff Williams who announced his coming retirement next month. Khan has served under Williams for six years, managing the tech giant’s supply chain and logistics.