Maybe not obly the cabin boy, but also other "helping hands" for the captain; everyone thar read the Bolitho novels knows what I mean, keyword John Allday.
The personal coxswain, the servant & co, maybe also a flag lieutnant as admirality reward for reaching Admiral rank, should be one multiplier for morale and other really tiny extras.
How about getting a improvenent/a new captain's compagnion by time and service/ archievements?