My team meets weekly to discuss our priorities, but we don't have a good way to visualize them. (We currently copy all the task links to a Doc table.) It seems obvious to me that viewing each person's LineUp should be available as a tab in their profile or at least as a filter option in the "X's Assigned Tasks" tab of Chat.
(I'd really actually prefer a totally separate page to view team Priorities when using it during a meeting as suggested here, so that I wouldn't be forced access the information via either a half page sidebar or by going past a private chat history first. But it should minimally be implemented in the existing locations suggested above first.)