I find it interesting that all the comments assume that there must be a "leader". Guess it is the standard mindset of this part of the world. However there are groups without a leader. In fact much of the worlds smaller isolated groups operate by consensus. A concept almost entirely ignored in our society.

In short, it is a technique where everyone in the group decides on a course of action. The discussion continues until everyone agrees. Mostly folks in our world consider it impractical. "There is always a leader" they say. Or, it takes too long.

However in an isolated society, the group is interdependent and must include everyone. Consensus is a workable solution, just terribly foreign to our mindset.

There are a number of good consensus methods adapted to our mindset published on the net. See:

http://en.m.wikipedia.org/wiki/Consensus_decision-making

It does take some "getting used to" if one is from a hierocratical world as most of us are. Actually it drove me nuts the fist time I experienced it. The talk went on forever...

But the eventual solution included everyone and tasks were then completed quickly.

Nomad