It created from a dozen commercial and trust banks and many more securities firms the three megabank groups.

FORBES: On-Line Brokers and the (Unfulfilled) Promise of Tokyo's "Big Bang"

So was the admission by the Attorney General of the United States that megabank executives were effectively too big to jail.

FORBES: Who's For Too Big To Fail Reform Now?

Making the diverse pieces of a megabank work together profitably has proved harder still when it comes to dealing with retail and small-business customers.

ECONOMIST: The trials of megabanks

The chief executive of Berkshire Hathaway (nyse: BRK.A - news - people ) said it improved his view of the megabank's stock, which he does not now own.

FORBES: Faces In The News

And while many call for the megabank to be unpacked and sold off in parts, Pandit isn't among them, arguing the company's size and broad base of businesses make it better suited to withstand economic cycles.

FORBES: What Would Dimon Do?