Often I get asked what is the next step in a sea going career, or people get injured and can't continue at sea.
This is a nice flow chart showing options after you are done with the sea going part of your life. By clicking on each box you can read the description.
Sometimes people can be merely competent officers or crew and their real talents and what they shine at is another marine orientated field.


http://casandbeyond.org/career-development/career-map/