On the J/70, we have four people. The helmsperson is just that: focused on driving. It’s a hard boat to steer really well, especially in rough water, so the rigid attention to steering makes sense. The next person forward is the main trimmer. Together with the helm, they focus on speed and moding the boat for every situation. They have the mainsheet, traveler and backstay, so the tools to control the power in the sails are in their hands. However, as in our case, this person is often also the tactician because they are often the most experienced sailor on board. The forward two crew would help with calling the wind, course geometry and fleet position. The jib trimmer works the jib sheet and looks around, while the forward crew calls the near-term wind and waves. But the big decisions are made by the main trimmer.