Hold changes in any contributing factors have reversed the decline of the empire? Why?

Historians generally agree that the Roman Empire began its decline at the end of the reign of the last of the Five Good Emperors, Marcus Aurelius (A. D. 161-180). The rulers that followed in the next century had little or no idea of how to deal with the problems facing the empire. Most, like Aurelius’ son Commodus, were brutal and incompetent. They left the empire greatly weakened.