@gravnos1
There are no real roles aboard a ship , i think that Rare did this on purpose in order to get to know the crew and how it acts...i sail mostly in a Brigantine and there we have a Helmswoman who steers us around towards and through many situations...When in a shipfight she swaps with our Captain and does cannons, sails and help me bail when i ask for help...my role is repairing , sailhandling and cannonshooting , i hardly ever sail as i'm notoriuos for putting holes in the ship...Our Captain reads the map , lines out the strategy which can chnge every second depending on many factors, he too handles sails , bails when needed and shoots the cannons or board ships...
You may put yer crew in roles as long as everybody helps the other one when the emergency calls for it...Don't keep sticking to yer guns when you hear screams for help with bailing or repairing...Your ship is the most important player , it may be free in cost but it carries your loot , you may lose it but the change to win everything back is not that great...Every role you may make must be in service for ship and crew ,otherwise you may lose a lot of ships and loot before you realize this..