Elecnet is an electricity distribution company based in a large capital city. Its business is to manage the electricity assets, including poles, wires and other equipment, that are used to deliver electricity to more than 500 000 retail and business customers in the city. Pole, wire and substation maintenance and improvements are a large part of the company's operations and teams of highly trained technicians are used for both planned work and emergency response activities. Emergency response is required when storms or fires bring down power lines, the power must be turned off at the direction of police, or the electricity supply fails for any reason.

Each team comprises several vehicles (vans and trucks) and uses additional heavy equipment, such as cherry pickers, cranes and diggers, as required. Each vehicle carries a core set of specialised parts and tools and additional items are obtained as required from the stores, located in a large warehouse in the northern suburbs. The warehouse is staffed on a 24-hour basis to assist night maintenance (designed to minimise disruption to business customers) and emergency response.

Required

(a) Make a list of the potential problems that could occur in Elecnet's maintenance and improvements program.

(b) Suggest ways that good internal control over parts, equipment and labour could help Elecnet avoid these problems.