Business development involves activities across departments that are aimed at improving and growing a business. It includes initiatives like expanding into new markets, developing new products or services, pursuing strategic partnerships, and implementing cost-saving measures. The business development team assesses opportunities, considers the impact on different departments, and works to align activities like sales, marketing, and operations with overall business development goals. Business development is focused on high-level strategic decision making and coordination to improve a business's prospects and drive overall growth.