Imagine a different XI century for the byzantine history. After the death of Constantine VIII, Constantine Dalassenos become basileus instead of Romanos Argyros. The doux of Antioch was an experienced military commander, influential patrician, and unswervingly loyal to the ruling house. Could he prevent the arise of weak emperors such as Constantine Monomakos, the Doukai etc.? Imagine if he could grant the power at the dynatoi, maybe securing the throne to other figures like Maniakes, Romanos Diogenes and the Komnenoi, giving stability and starting the structural transformation of the empire. Probably the pronoia could have been instituzionalized before instead of the theme system, and - for sure - the empire's army would never decline.