In Italy the left during the last 20 years was permanently looking for a shortcut to get to (and remain into) government.
The last in time is Mr. Renzi, who has got none of the characteristics a leader of the left faction should have, but seems to be the only one who can win.
Win to do what? The same policies?
The work of politics: building support in the country around a realistic but also inspiring political programme, is no more considered an option.
They want to win fast, and they are doomed to loose immediately after.