Centralized organizational structures rely on a single individual, often the owner, to make all business decisions. This structure is common in small businesses where the owner handles operations. Decentralized structures distribute decision-making authority across multiple individuals at different levels. Decentralization can improve job satisfaction, speed up decisions, and allow for innovation, but can also increase expenses and lead to coordination issues if not implemented properly. There is no single best approach and most organizations balance centralized and decentralized approaches depending on their needs.