From investors' point of view, though, there's reason to be worried about life after Atkins — as Wednesday's selloff indicated. For one thing, there's no guarantee that Atkins' replacement can do as good a job in managing risk as Atkins has done, particularly over the past three years. Atkins proved his tenacity in handling interest rate risks by balancing its $13 billion to $16 billion dollar mortgage-servicing rights portfolio against its $200 billion to $400 billion worth of mortgages.