the new member dsnt have to has a position it`s a pirate ship fighters are the priority the other ones are just there to spport them on the road the sh`s just happened to know how to fight in additon to thier postions so it dsnt matter actually if the new member will fill a postion or not actually i hope he is just a fighter cause that will ensure he will be a strong one ,better than some one weak and all he has is his postion like nami all she is doiing is wasting the precious panel time (at least for someone who dsnt like fanservice)