Boeing has clarified a key leadership post for the 777X while the programme remains in the early development stage.
Bob Feldmann has been named vice president and general manager for the re-engined and re-winged version under advanced study by Boeing.
It marks an early leadership change compared to Feldmann's previous assignment. He was appointed vice president and general manager of the 737 Max on the same day that Boeing launched the development programme in August 2011.
Feldmann is replaced on the re-engined and updated narrowbody team by former vice president and general manager for propulsion systems Keith Leverkuhn.
Both Feldmann and Leverkuhn will report to Scott Fancher, who in December was named vice president of airplane development programmes. Fancher also currently manages ongoing production operations for the current 777 models.
As part of the internal staff changes, Nicole Piasecki will move to replace Leverkuhn as head of the propulsion systems division, a role that is being enlarged to include shaping the engine strategy for the overall company.
Piasecki will report to supply chain management and operations chief Stan Deal.
Meanwhile, Piasecki's former role as head of product and business development is being split into two organisations. Four offices - environment and aviation policy, product strategy, services strategy and strategic planning and analysis - are merged with the marketing division led by former 787 programme manager Mike Bair.
The industrial participation office, meanwhile, will be split off to report to a supplier management organisation led by Kent Fisher.