Just quoting+translating the "Sailing guide" by Roth & Monfret a pdf also referenced as tunning guide:

"Skipper: ... On a broad reach I have the tiller (of course) and the jib sheet, that allows me to trap very aft. The jib sheet passes over the main sheet, managed by the crew"

"Crew: upwind I have the mainsheet (good gloves required)... ... on a broad reach I have the mainsheet and traveller"

Well, that is my translating and not sure if i got it right.