THE GOOD

Company: California Pizza Kitchen

CEOs: Rick Rosenfield and Larry Flax

Skinny: Together they founded the high-end pizza chain in 1985 and still run it today.

THE BAD

Company: Kraft Foods

CEOs: Betsy Holden and Roger Deromedi

Skinny: They shared the top job from 2001 to 2003. Then Holden was demoted amid sagging sales and left.

THE UGLY

Company: Citigroup

CEOs: Sandy Weill and John Reed

Skinny: They had a tense relationship after the 1998 merger of Citicorp and Travelers. In 2000, Reed left.

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