Inadequate pay for Gainesville firefighters is causing attrition within the department and costing city taxpayers dearly, according to multiple sources in the fire department. Sources also said city management has been unresponsive to their concerns for years, prompting them to speak out about dwindling morale, risks to public safety posed by the pay issue and a worrisome lack of experience among a growing number of firefighters. The Times has learned that city management and human resources officials had selected about 20 firefighters for interviews in recent weeks to discuss concerns about pay, leadership and morale within the department.