As expected, Citigroup Inc. (NYSE: C) today named Vikram Pandit as its new CEO, replacing the hugely unpopular Charles Prince. Acting CEO Win Bischoff replaced former Treasury Secretary Robert Rubin as chairman. Rubin didn't want the job permanently.

As pundits including CNBC's Charles Gasparino pointed out, Citigroup's board didn't feel that Pandit had enough experience to get both jobs. That's no slight against Pandit, who joined New York-based Citigroup after selling the company his hedge fund for $900 million. Few if any people are experienced in the huge variety of business at Citigroup which is why Pandit says "simplifying the company's organizational structure and aligning our businesses and resources with appropriate goals and economic realities will be among our initial priorities."

So what does that mean?

Will Citigroup exit its retail business and focus on corporate banking? Are more job cuts coming down the pike? Investors are demanding quick answers to these and many other questions.

``They need somebody who can get in there and put some color on exactly where the risks are and what they're doing to address that,'' Johnson Asset Management analyst William Fitzpatrick, told Bloomberg News. ``The stock's been in freefall for the last couple of months.''

Shares of Citigroup, which are down 40% this year, fell further today with other financial stocks amid disappointment over the Fed's rate cut announcement