However, Mr Chaiyawat also resigned in May 1998 f ol lowing publication of a report about his role in defending the baht that led to the 1997 financial crisis.
Separately, the sources said Mr Naris was tipped to be a successor to Achporn Charuchinda, who resigned last month as chairman of the securities watchdog.
Mr Achporn, former head of the Council of State, the government's legal advisory body, was appointed as SEC chairman by the Yingluck Shinawatra government in July 2013.
He replaced Chaikasem Nitisiri, who was appointed as justice minister at that time.
In a related development, Transport Minister Arkhom Termpittayapaisith has resigned as secretary-general of the National Economic and Social Development Board, effective Oct 1.
The government bars senior government officials from holding two positions at once.