Why are the resignations of the four deputy mayors significant for New York City?

According to NYC Public Advocate Jumaane Williams, these resignations were intentionally timed and create a severe governance problem as 'the city literally can't run.' The deputy mayors were specifically appointed because of their reputation for ensuring the city's operational continuity. The timing is particularly concerning as New York City faces dire financial circumstances. This leadership vacuum comes at a critical moment when stable management is essential for addressing the city's financial challenges and maintaining basic government functions for its 8.3 million residents.