If Jiraiya was chosen to be Hokage. What would it lead up to?

[regii sanguinis]

let's put it this way, if Jiraiya were Hokage during Pain's Invasion, then Konoha is done for.. i don't think Jiraiya would have the means to protect everyone in the village.. Tsunade being Hokage on that given point in time was the best for everyone in the village..