The Swiss cabinet held an emergency meeting about the central bank's move on Thursday but gave no public statement after, with most politicians, including Finance Minister Karin Keller-Sutter, tight-lipped.
Greens lawmaker Gerhard Andrey said managers should take responsibility and Switzerland should look at its regulations, with the Credit Suisse debacle putting the country "in a very difficult situation".
That Credit Suisse has problems has been known for a long time," said Martin Staub speaking in central Zurich.
The financial sector makes up about 9% of Swiss gross domestic product, according to Finance Swiss, and employs 5.5% of the workforce.
"The Credit Suisse crisis is negative for Switzerland, but not enough to damage the reputation of Switzerland on its own.