[Olympic Games]

I don't think anyone can 'change' the job iirc.
From my understanding we can only add a second job.
Worst case I'll donate a few points to Pure Prospector.

The prospector job is not locked in, so we can change it. Gime's warned us that there's a 50% chance that a job won't make it. Just look at the last two characters: The anarchy crewmember could have been a sticky hand man and everyone was free to edit the job of navigator in the mad horse.