Lawmakers were told Wednesday the welfare division needs a huge increase in staffing to manage a growing food stamp and Medicaid caseload caused in part by the Affordable Care Act.On top of that, they were asked to authorize a study that will begin the process of replacing the Child Support Enforcement program’s computer system.Steve Fisher, deputy administrator of Welfare and Support Services, presented a joint legislative committee studying the division budget charts projecting an increase of 62,679 in food stamps recipients and more than 170,000 Medicaid recipients by the end of the coming two year budget cycle.Much of that increase, …