Complex sentence: With partnership in mind, the head office became more of a resource centre for the stores; providing support in the areas of purchasing, point-of-sale systems, accounting, credit, insurance, legal services, human resources, and marketing.
Split into simpler sentences: With partnership in mind, the head office became more of a resource centre for the stores. It provided support in the areas of purchasing, point-of-sale systems, accounting, credit, insurance, legal services, human resources, and marketing.