Then there is the question of delivery risk after contracts and structures are already in place. In South Africa, the transport minister has tried to ease the concerns of a shipping industry that is losing patience with Durban harbour. The same report says workers believe they have been short-changed by Transnet's private sector alliance. That is not a fresh buying programme. It is an operating stress signal. For shipping lines, logistics providers and port service contractors, reliability can matter just as much as a new procurement notice.