The next few months are shaping up as a critical time in the life of the post-Enron, post-WorldCom reform agency — the Public Company Accounting Oversight Board.

Sometime in October, the five-member board, created by the Sarbanes-Oxley Act of 2002 to oversee the auditors of public companies, could be down to two members. And, early next year, the Supreme Court will hear a constitutional challenge to its very existence.