Complex sentence: Michael Ovitz (born December 14,1946), talent agent and Hollywood powerhouse, served as the head of the Creative Artists Agency from 1975 to 1995, at which point he resigned to become president of the Walt Disney Company under chairman Michael Eisner.
Split into simpler sentences: Michael Ovitz (born December 14,1946), talent agent and Hollywood powerhouse, served as the head of the Creative Artists Agency from 1975 to 1995. In 1995, he resigned from CAA to become president of the Walt Disney Company under chairman Michael Eisner.