The phrase "command structure" refers to the way a group or organization is organized or structured in terms of authority and decision-making. It determines who is in charge and how orders are given and followed. Full definition
Everything was more user - friendly, from the menu layout to the easier voice command structure. (bestride.com)
Firm decision - making and carefully constructed command structures were his trademarks. (politics.co.uk)
They lack command structures, they make excellent use of social media to organise crowds, they prefer informal networks to paid up membership structures. (politics.co.uk)