I believe the best reason is so that everybody isn't trying to do everything at once, which is a good layer of prevention against a group argument.
assign group roles.
assign group roles.
note taker
Either gather ideas or agree on one idea
Roles should be assigned so everyone has a part in the group and no one will be left out.
to guide the discussion and mediate disputes
She will assign roles to each team member for the project.
Users assigned roles in a higher context, for example users assigned the role of teacher in a course category context, may appear as course participants. The discussion Discrepancies between Assign Roles lists and Participants list contains a longer explanation.
Executive and Chief
The facilitator or timekeeper within the group is responsible for keeping the discussion on schedule. They ensure that the group adheres to the agenda and allocated time for each topic or activity. Additionally, they may intervene to redirect the conversation if it veers off-topic or becomes overly time-consuming.
These roles contribute to the positive functioning of the group
Yes, but their roles vary from group to group.