Tribune Co. CEO Sam Zell responded to a lawsuit filed against him by current and former employees of the Los Angeles Times by calling the legal action “frivolous and unfounded” and saying his tenure as owner has been marketed by “tremendous progress.” The suit accuses Zell, who took control of the newspaper chain last December, of recklessness and mismanagement of the Times' parent company. Plaintiffs include Pulitzer Prize winning automotive columnist Dan Neil, and former writers Henry Weinstein, ...