it's like, in agile (which can be scrum or kanban or neither), you have your sprints. sprints are when you work on tickets, or issues, or stories. each of those gets points, which is how you get story points, and you need to complete a certain number of points per sprint. people are grouped into different workstreams, or sometimes they even call them squads and guilds, and those groups do their sprint planning and standups together but they also check in with other groups too. in certain organizations who do scrum or pseudo-scrum, one guy is in charge of each sprint (except sometimes they call it a "scrum" instead of a sprint), and he's known as the scrum master. and across all the agile frameworks, each story or ticket or issue always gets assigned to a single person. but when you have a group of related stories that are all part of the same big project? that's an epic
