Under the leadership of Dr. Carsten, The league developed tools to help agencies with both their operations. It define the field of expertise so that the agencies could give services to the community for which each was best equipped(Lundberg).Dr. Carsten, also worked on the standardization of laws and policies on children.
President Hoover appointed him to chair the section on physically and socially handicapped children ().Dr. Carsten, also represented the United States at two child welfare Pan American Congresses in Brazil in 1922 and Cuba in 1927(Lundberg).Dr. Carsten was a person who was not academically rigid or stuck in position. Rather he was a careful seeker of the truth and was not afraid to change his position when the facts warranted change. For example, Dr. Carstens was opposed to the institutional placement of children. His preference had always been to keep families (Lundberg). But as new facts came to light, Dr. Carstens shifted his position to allow for institutions for same children who might benefit by institutional placement.
"C. C. Carstens was an interpreter of the needs of dependent children. Perhaps no other person concerned with child welfare had such an intimate knowledge of child-caring institutions and agencies throughout this country or could count among his devoted friends so many of the heads and staff members of these organizations. He seemed to have been intended by nature for an academic career. But just as he was endowed with an ardent love of fine music, so he had an instinct which grew into a passion for service which would lighten the burden of children who were neglected, dependent, or physically handicapped, and make available to them the opportunities which should be the heritage of all children". (Lundberg)