How did the extended stay transform the nature of the mission for Wilmore and Williams?

Answer

They transitioned from a test flight mission profile to an ISS expeditionary role

Because the return was delayed for months, the crew effectively shifted roles, assisting with ISS maintenance and science tasks without having the formal preparation of a standard Expedition crew member.

How did the extended stay transform the nature of the mission for Wilmore and Williams?

#Videos

Concerning the Stranded Astronauts - YouTube

SpaceNASAastronautsmissionspace missionStarlinerBoeingdelay