According to Jon Walker, this meeting can handle all the decision making of a coop of size 12 or less.
"All decisions were made by consensus, and weekly meetings (when necessary) usually lasted about ten minutes. Working procedures evolved during the day: after a 30 second planning session ("Let's do the Basmati rice first"), everyone would work around each other, without formal planning, and the days production would proceed. The process is much more in sympathy with the operation of a Jazz band or a football team: basic rules and constraints are understood, but the specific actions performed by the participants are dictated by the conditions of the moment." p. 19