Morgan Hoogvelt, director of talent acquisition at Clear Channel Communications Inc. in San Antonio, says that the company until recently didn't have a formal onboarding process.

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That leaves a slim opportunity for the remaining shareholders to threaten to withhold support with hopes of getting a higher price, as happened in recent takeover fights at Clear Channel Communications Inc.

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Prior to that, Mr. Sillerman served as the Executive Chairman, a Member of the Office of the Chairman and a director of SFX Entertainment, Inc. from its formation in December 1997 through its sale to Clear Channel Communications, in August 2000.

FORBES: Robert F.X. Sillerman