Former FTX CEO Sam Bankman-Fried will no longer be represented by his legal counsel at Paul, Weiss, Rifkind, Wharton & Garrison, a white-shoe law firm, less than a week after retaining the firm to represent him.

Semafor reported on Thursday that Bankman-Fried will now be represented by David Mills, a criminal law and white-collar crime professor at Stanford University’s law school – where Bankman-Fried’s father, Joseph Bankman, also teaches law. It was not clear whether Bankman-Fried had parted ways with Martin Flumenbaum, his attorney, or if the law firm had dropped him as a client.

Flumenbaum did not return requests for comment.

Though Bankman-Fried has not been accused of any crime at press time, his conduct is being investigated by the Justice Department, the U.S. Securities and Exchange Commission (SEC), the Commodity Futures Trading Commission (CFTC) and others.

A filing signed by John Ray III, the new CEO of FTX, suggested Bankman-Fried had at best engaged in poor practices in running FTX’s financials, saying he did not trust the consolidated asset and liability claims FTX had prepared under the former CEO and calling him “potentially compromised.”

Bankman-Fried has said a number of things publicly, prompting Ray to say in the bankruptcy filing that the former CEO is not currently employed by FTX and has no role representing the company. FTX published a similar statement on Wednesday.