Yea, make sure there is one leader like everyone said before.

That way, if there is an argument and a schism occurs, the clan wouldn't fall apart as easily.

In my guild wars guild, one officer and the guild master had an argument irl (they were college buddies) and out of spite, the officer kicked everyone lower than him out of the guild and it just basically collapsed afterwards since most people immedietely got into other guilds they had friends in....we were pretty good too, top 200 ranked