The document discusses rebranding at different levels - individual product, business unit, and corporate. It outlines the main drivers for rebranding such as changes in ownership, corporate strategy, competitive position, or external environment. Rebranding involves renaming, repositioning, and redesigning a brand. Consumers' attitudes towards rebranding are influenced by their commitment to the original brand and resistance to change, so research should be conducted to understand consumers before undertaking a rebranding effort.