Intranets were intended to copy the success of the Internet within an organisations’ borders. They were the embodiment of ‘small pieces, loosely joined’, to cut through the hierarchical control structures of a large enterprise, to allow local innovation, human conversations and direct access to expertise.
That’s why they needed a ‘hub’. A star-structure is just a tree-structure, drawn from above (and there are no longer any borders.) The enemy (your customer) has breached your outer defences. Beware, you may have to listen to them. The last thing you need now is your staff cooperating, without your permission.