Longer term strategic planning aimed at "shaping the future" is a key element of success in business today, Mr Patrick Campbell, chairman of the Campbell Bewley Group, said yesterday. "As a manager, you should ask yourself, are you simply a maintenance engineer keeping today's business running smoothly, or an architect imagining tomorrow's business?" Mr Campbell told students gathered for a business breakfast organised by the Price Waterhouse sponsored Foresight society in Trinity College, Dublin.