Tanya Joseph: The rules of crisis management have been forgotten

On the day after the general election utter confusion reigned. Thinking the dice were loaded in her favour, Theresa May gambled big and lost big. Jeremy Corbyn also lost but such was the scale of the self-inflicted damage incurred by May that he was able to present his failure as a victory. We live in strange times.
Lots has been written about the whys and hows of this election outcome. How long the prime minister will be able to cling to power, the wisdom of the Conservatives getting into bed w