(FORTUNE Magazine) – CEO TENURE Lawrence Bossidy 7/1/91 to present Allied-Signal

Warren Buffett 8/18/91 to 6/3/92 Salomon Inc.

Frank Cahouet 6/19/87 to present Mellon Bank

Martin Emmett 4/25/89 to 6/1/93 Tambrands

Stanley Gault 6/4/91 to present Goodyear

Louis Gerstner 3/10/89 to 4/1/93 RJR Nabisco

Richard Miller 3/28/90 to 1/21/93 Wang Laboratories

John Sculley 4/11/83 to 6/18/93 Apple Computer

Paul Stern 3/1/89 to 3/1/93 Northern Telecom

Mike Walsh 9/4/91 to present Tenneco

WHAT HAPPENED DURING HIS REIGN Lawrence Bossidy Allied-Signal A GE veteran, he turned Allied-Signal inside out, removing layers of management and abolishing unnecessary work to speed product development and improve customer service.

Warren Buffett Salomon Inc. As interim CEO, the Berkshire Hathaway legend appointed a new inside-outside management team that forced Salomon's highfliers to become more accountable to the bottom line.

Frank Cahouet Mellon Bank Mellon's first outside CEO came from Crocker National via Fannie Mae. He turned earnings around in two years by chopping costs, selling $1 billion of problem loans, expanding retail and trust businesses.

Martin Emmett $ Tambrands Came from Security Pacific, sold off peripheral businesses, but stopped Tampax ads for months to retool marketing. Customers fled, the stock fell from its peak, and he was fired.

Stanley Gault Goodyear Goodyear begged the Rubbermaid king to work his magic in Akron. Gault obliged, reducing debt about $1.8 billion over 18 months and creating empowered teams to flood the market with new products.

Louis Gerstner RJR Nabisco Brought in after F. Ross Johnson's failed coup, the American Express dynamo streamlined operations and whittled debt. But he left the job half finished when he jumped to IBM last spring.

Richard Miller Wang Laboratories Shrinking Wang's $1.1 billion debt by selling assets and issuing pink slips wasn't enough to stave off bankruptcy. Miller disappointed the board by resigning before the company emerged from Chapter 11.

John Sculley Apple Computer Wooed from PepsiCo by Steven Jobs, he brought marketing skills and corporate discipline. Sales climbed tenfold, but he left the company without a strategy when he wandered off to a tiny tech firm.

Paul Stern Northern Telecom The former president of Unisys took the company global and punched up marketing. He left after a record year -- but just before NT announced a poor first quarter and a disastrous second.

Mike Walsh Tenneco Cultural changemeister Walsh came to Tenneco from Union Pacific Railroad, sold businesses, wrung out costs, and energized employees into reengineering even the smallest processes.

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