Question: Who was not prepared for the financial crisis in 2007 by lacking a full understanding of the financial system?
Sentence: It concluded that "the crisis was avoidable and was caused by: widespread failures in financial regulation, including the Federal Reserve’s failure to stem the tide of toxic mortgages; dramatic breakdowns in corporate governance including too many financial firms acting recklessly and taking on too much risk; an explosive mix of excessive borrowing and risk by households and Wall Street that put the financial system on a collision course with crisis; key policy makers ill prepared for the crisis, lacking a full understanding of the financial system they oversaw; and systemic breaches in accountability and ethics at all levels".
Answer in sentence: yes