An excerpt from a Jon Talton piece in the Seattle Times:

Even back in the 1980s, shareholder activists and academics urged companies to separate the jobs of chief executive and chairman, as well as to have more independent directors.

The CEO is the top manager. But the chairman of the board should represent the larger interests of shareholders. He or she ideally is an independent director and can act as a check on the chief executive.

An independent chairman, for example, might have stopped Thompson from risking Wachovia's (NYSE: WB) future by acquiring mortgage lender Golden West Financial in 2006, when the signs of a housing and credit bubble were already abundant.

Yet America spent the 1990s worshipping at the altar of the imperial CEO, who held the title chairman as well, as if by divine right. CEO pay began its rise to imperial levels, no matter the company's performance.

The model here was Jack Welch at General Electric (NYSE: GE). Rubber-stamp boards became the norm. These corporate celebrities wrote books that not only promised to unlock the secret of business success, but even personal enlightenment.

Of course, it's easy to be a genius in a bull market. When scandal and corporate missteps brought on the 2001 recession, the centralized corporate-leadership model showed its worst weaknesses.

Enron, WorldCom, HealthSouth, Tyco International and others lacked independent chairmen and boards.

Congress passed reforms focused on the bookkeeping, but few companies emerged into the 2000s with independent chairmen, or even independent judgment.

The problem is all-powerful CEOs don't always act in the best interests of shareholders. This is on display with the disconnect between CEO compensation and performance.

Nor do imperial CEOs always act for the long-term health of their companies. This was the point of last week's unsuccessful effort to split the chairman and CEO jobs at Exxon Mobil (NYSE: XOM).

Dissident shareholders, including the Rockefellers, argued that the current imperial CEO refused to invest enough in alternative energy.

Exxon, of course, is awash in profits.

Facing a shareholder revolt of no small power, [Wachovia has] the opportunity to break the imperial model, split the jobs and bring independent judgment to the toughest calls.

What a concept.