The Siege of Oz

Before the Wizard floated off and Dorothy vanished, the Scarecrow, Tinman, and Lion swore to rule Oz with intelligence, compassion, and bravery.
Instead, they spent their time bickering and fighting.
The Lion became foolhearty. Barroom brawls ruined his once-magnificent pelt, making him that much more sullen and angry, drinking more, fighting more.
The Tinman was overly compassionate, giving away everything in the Treasury.
The Scarecrow, stuck with the balance sheets, yelled “Damn you both!”
The leaderless Winged Monkeys and Witch Castle Guards received news of this chaos.
They marched on Emerald City, ready to overthrow the misguided and incompetent triumvirate.