The Jets’ decision to sign Tim Tebow as the team’s “backup” quarterback right after current QB Mark Sanchez signed a contract extension portends an inevitable rivalry. As history (and Highlander) has proved, where power is concerned, there can usually be only one.

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The Jets’ decision to sign Tim Tebow as the team’s “backup” quarterback right after current QB Mark Sanchez signed a contract extension portends an inevitable rivalry. As history (and Highlander) has proved, where power is concerned, there can usually be only one.

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Two People, One Job: The Tebow-Sanchez Effect

Competing Leaders: Two’s a Crowd
Competing Leaders: Two’s a Crowd

The Jets’ decision to sign Tim Tebow as the team’s “backup” quarterback right after current QB Mark Sanchez signed a contract extension portends an inevitable rivalry. As history (and Highlander) has proved, where power is concerned, there can usually be only one.

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Tim Tebow and Mark Sanchez
Tim Tebow and Mark Sanchez

After extending their starting quarterback Sanchez’s contract, the Jets signed Tebow as their “backup” on March 21. Controversy and speculation about who will take the first snap next season are already bubbling up among fans.

Steve Jobs and John Sculley
Steve Jobs and John Sculley

(Replaces an earlier image that was not John Sculley)

Clashing opinions over product direction led Apple Chief Executive Sculley to ask to the board of directors to remove Jobs as head of the Macintosh division. Jobs—who was then appointed chairman and no longer had managerial power—left the company shortly after in 1985.

Associated Press
Sandy Weill and John Reed
Sandy Weill and John Reed

Citigroup may be too big to fail, but it was clearly not big enough for two chief executives. After Citi CEO Reed and Travelers CEO Weill merged the companies in 1998, Reed was forced out by his co-CEO in 2000.

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Jon Corzine and Henry Paulson
Jon Corzine and Henry Paulson

Corzine was CEO of Goldman Sachs from 1994 to 1999. "Corzine was ousted in a coup within Goldman's all-powerful five-man executive committee," which included his co-chief executive Henry Paulson, reported BusinessWeek.

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Conan O’Brien and Jay Leno
Conan O’Brien and Jay Leno

Less than a year after O’Brien was appointed host of The Tonight Show, NBC put Leno back in his old seat. “Every comedian dreams of hosting The Tonight Show and, for seven months, I got to. I did it my way, with people I love, and I do not regret a second,” O’Brien said on his last show.

Lew Glucksman and Pete Peterson
Lew Glucksman and Pete Peterson

Glucksman shared Lehman Brothers’ CEO position with chairman Peterson until 1983. Glucksman remained as the firm’s sole chief exec, but the power struggle led to departures and the sale of the firm to American Express, according to Bloomberg Businessweek.

Maria Bartiromo and Erin Burnett
Maria Bartiromo and Erin Burnett

Who is CNBC’s sweetheart—Burnett, nicknamed “Street Sweetie” and “Maria 2.0,” or Bartiromo, aka "Money Honey?" Bartiromo won CNBC—Burnett now hosts Erin Burnett OutFront on CNN—though the hosts claim there was no rivalry.

Sammy Hagar and David Lee Roth
Sammy Hagar and David Lee Roth

The rival Van Halen vocalists switched in and out of the band over decades and even toured together in 2002. Roth remains in the band today.

WireImage