Cooperating across the business silos, whether countries, segments, functions or between HQ and the operational units is a major challange. Considering "with whom can I achieve better results", are not in the minds of the people.
What are the implications for your organizational structure?
From my perspective the question with holacracy is not what the implications for the organizational structure are, but rather what the implications for the organizational culture are. Although the concept is well structured and explainable, it is still a hugh mental change and should be implemented with the finesse of a major change program.