The departing head of the European Central Bank vowed in 2012 to "do whatever it takes" to save the euro.
To begin with, the mandates for both are different.
European unemployment hit a new record high in April. 12.2 percent, or about 20 million people, across the 17 countries that use the euro are out of work.
The European Central Bank (ECB) has cut interest rates to a record low of 0.5 percent. But how much stimulus can the ECB really provide?
The European Central Bank has given the Cyprus just a few days to come up with a new bailout deal after the Cypriot parliament rejected a controversial tax on bank deposits as part of its original bailout plan.