|The Sack (?) of Rome|
Simply put, Innocent I offered permission to offer sacrifices to the old Roman gods. I am not even sure this would have been legal since Emperor Theodosius had officially outlawed pagan sacrifice some thirty years earlier. But he lifted the fatwa (to mix my religious sources) against polytheistic worship, which is as much as he could do.
There's always the chance that folks will turn on their god(s) in times of distress. I prayed; where were you? If they get really ugly, they can turn on God's servants on Earth as well as God in Heaven. I'm not saying that His Holiness was afraid, but I'll go so far as to say I would have been. I will go so far as to credit Pope Innocent with very cleverly preempting a religious revolt. It seems to me that he said to them, more or less, 'If you think Jupiter Optimus Maximus can do better, go back to bull-slaughtering on the Capitoline."
According to the historian Zosimus (different guy from the Zosimus who succeeded Innocent as Pope), the people did not flock back to their old faith. With permission granted, they hung with the Trinity and muddled through. There were tough times ahead, for sure, but in spite (or perhaps because) of Innocent's toleration, the Roman Church prevailed.
If he doesn't have a patronage yet, I'd suggest chess players and other strategists.