Horizon Pharma has formed an executive committee and has restructured its U.S. commercial operations into three divisions, each led by a general manager reporting to Timothy P. Walbert, chairman, president and chief executive officer. Additionally, Todd N. Smith, executive vice president, chief commercial officer has resigned from the company. In addition to Mr. Walbert, the executive committee includes: Robert F. Carey, executive vice president, chief business officer, Paul W. Hoelscher, exe...