This might seem pedantically trivial, but my first reaction to holacracy was 'why should I trust your system when you can't even build a word properly?' The Hol part is is from Holos, Greek for whole. You could talk about a holarchy (a previous attempt at this sort of system) because a 'holorchy' would suggest a whole ball and 'holoarchy' is unwieldy. But 'holacracy' is such a linguistic mess that it conveys an air diving into something without having thought out the underlying assumptions properly.
"This might seem pedantically trivial"... you were right ;)