The One Piece world is full of pirate crews, each with members assigned specific roles based on their expertise, like navigators and cooks. In the Straw Hat Pirates, Usopp and Sanji initially performed two roles each due to a lack of personnel. However, they were replaced by Franky and Jinbe, who excelled in those roles. Usopp, known for his mechanical skills, initially acted as a make-believe shipwright for the crew until Franky built a new ship, The Thousand Sunny. Sanji, a cook with strategic abilities, played a crucial role in saving the Straw Hats during various arcs.

Jinbe eventually joined the crew as a helmsman and unofficial strategist, contributing significantly to their success. Despite the changes in roles, all members of the Straw Hat Pirates continue to showcase their strengths and talents in various situations.