20 CEOs in one company
softwaremill.com
softwaremill.com
Even worker coops have a CEO and management its just that all the employes are the share holders which is a bit more manageable at scale.
And the scale they're doing it on is also alarming, but I'm relatively new to the startup scene, so maybe I'm wrong
ALSO - They should look at the problems that Valve has had in the past with a "flat" structure
Of course the social structure will evolve, however we're not afraid of 'secret social structures' as the company is fully transparent and we all have similar mindset.
For 3 years we've been all working remotely from our homes - I can imagine, that during this time, any 'secret structures' would have already appeared.
From what I've read[1], scaling of the small development/production groups is the pitfall.
[0]http://media.steampowered.com/apps/valve/Valve_Handbook_LowR...
[1]http://www.wired.co.uk/news/archive/2013-07/09/valve-managem...