"Everyone: Blackberries off," Ann Nelson instructs executives gathered around a conference table six minutes before Employers Holdings Inc. of Reno is scheduled to open the phone lines for the company's quarterly conference call with investors.Everyone double-checks, making small jokes with Nelson, the executive vice president of corporate and public affairs with Employers Holdings.Five minutes remain.The nine top executives of the publicly held workers compensation carrier based in Reno take one last look at their scripts. The sun shines brightly through the windows of the third-floor conference room at Employers' headquarters in South Meadows.Doug Dirks, the company's president and chief executive, …