Complex sentence: Bailey and Litchfield, who named it "Ritz Newspaper" to avoid confusion with the Ritz hotel's in-house Ritz magazine modeled Ritz on Andy Warhol's "Interview" magazine.
Split into simpler sentences: Bailey and Litchfield named it "Ritz Newspaper" to avoid confusion with the Ritz hotel's in-house Ritz magazine. They modeled Ritz on Andy Warhol's "Interview" magazine.