The city has struggled to recruit emergency medical service workers and has been losing staff to other communities that offer better pay, a trend that city officials worry will eventually affect service quality.The city lost 47 EMS workers in the last year, and a total of 88 over the last two years. Ten staffers have left in the last month - six of them for jobs in Memphis, Tenn., which offers a $10,000 signing bonus, moving expenses and a starting annual salary that's about $20,000 more than Cleveland's.