US treasury secretary Scott Bessent on Sunday said Nvidia should look outside the firm for a new chief executive, citing concerns over the company’s internal culture.“This makes me think that as the board conducts a search for a new leader that they need to go outside the company, that just (with) what was going on inside the company, they need a dramatic shakeup,” Bessent told Fox News’ Sunday Morning Futures.Nvidia CEO Jensen Huang stepped down on Thursday after reports emerged about his alleged extramarital relationships, including one involving Alice Huang, a former senior executive at Megaspeed International, an Nvidia customer, who was reportedly under US investigation on suspicion of spying for China.Bessent also said Nvidia’s board and its external legal advisers should answer questions about the company’s compliance culture and adherence to US export restrictions within the next 10 days.Earlier this week on November 10, Nvidia’s independent board members announced that they had appointed the Wall Street law firm Wachtell, Lipton, Rosen & Katz to conduct an independent investigation.The decision followed reports by The New York Times and The Wall Street Journal about Huang’s relationships with Alice Huang and US authorities’ suspicions that she may have been spying for China.Beijing has denied that Alice Huang is a spy. In an interview with Bloomberg published on October 29, Jensen Huang said the US government had not informed him about its suspicions concerning her.In a statement earlier this week, Huang apologised for being unfaithful to his wife and disappointing the company, although he did not specifically name Alice Huang.