Final answer:
Decentralized HR structures feature HR staff within each unit, while dedicated HR structures apply HR's expertise to each unit's specific strategic needs.
Step-by-step explanation:
In organizations, HR structures can be either decentralized or dedicated. Decentralized structures feature HR staff within each unit, carrying out required activities. This allows for more direct contact between HR and other functions, facilitating communication and responsiveness. On the other hand, dedicated structures also have HR staff within each unit but with a focus on applying HR's expertise to each unit's specific strategic needs, promoting strategic alignment between headquarters and units.