ORLANDO, Florida (Reuters) -The vice president leading Boeing's ( BA ) Starliner spacecraft unit, Mark Nappi, has left the troubled program and was replaced by the company's International Space Station program manager, John Mulholland, a Boeing ( BA ) spokesperson told Reuters on Thursday.

Nappi, who led Boeing's ( BA ) Starliner program through major engineering issues since 2022, is in a new role "focused on identifying opportunities for streamlining improvement across the division's space programs until he retires next month," Boeing ( BA ) said.

Mulholland previously led Boeing's ( BA ) Starliner program before switching in 2020 to the company's International Space Station program, which works closely with NASA under a multi-billion-dollar station operations contract.