When it kicks the can down the road and when no one can agree on what was agreed.
Greece will not receive any of a €7 billion installment from the bailout until it has carried out all remaining reforms required by creditors, some of which Mr. Tsipras had pledged to roll back.
Greece must also show that it is not abandoning austerity measures unilaterally.
That means that if Athens moves slowly, it may not get the money for months. Some also questioned whether the new left-leaning government, which rose to power last month on an anti-austerity platform, was actually capable of delivering the reforms that Europe is demanding.