Why did the Byzantines want Belisarius to stake everything in a single battle against the Goths?

The Byzantines, particularly under Emperor Justinian I, wanted Belisarius to stake everything in a single battle against the Goths to achieve a swift and decisive victory that would secure Italy for the Byzantine Empire and re-establish Roman authority in the region. This high-stakes approach aimed to capitalize on the element of surprise and the tactical brilliance of Belisarius, who was known for his innovative military strategies. A decisive win would not only weaken the Goths significantly but also bolster support for Justinian's ambitious reconquest plans, enhancing his legitimacy and power. Ultimately, the hope was to restore the glory of the Roman Empire and consolidate Byzantine control over Italy.