Turning around D.C.’s child welfare agency will demand strong leadership, accountability and resources that the troubled department has long lacked, District officials said in the wake of the office director’s resignation.

The Child and Family Services Agency, which emerged from federal receivership in 2001 and is now under court-ordered monitoring, measurably improved during the 13-month tenure of its now former Director Sharlynn Bobo, said Ward 6 D.C. Councilman Tommy Wells, who has legislative oversight of CFSA.