As an experiment, I am considering having a crew where the Chief and/or Senior Petty Officers in the following 'roles' (er...I know the crew in the game isn't analog to the historic crew in some ways) are given the 'Medic' qualification.
Obersteuermann (Chief Quartermaster)
Crew supervision, discipline
Navigator (Chief boatswain)
Navigation and provisioning of supplies.
Bootsmann Navigator
Crew discipline.
The reason? As in the game, the medic qualification helps if it is in the crew quarters...I am going to push it further, that good quartermaster duties and discipline activity, also keep more availability in the crew....
Just an idea that might be way off but I'll see what, if anything, happens.

Probably a dead end.