The ADM is the USA Hockey American Developmental Model. It’s designed to bring the “Fun” back into youth hockey. The focus is on skill development and small area games. It allows even beginners to hockey the ability to participate. Don Derosia: Massachusetts’ ADM crusader March 22, 2013 By Mike Scandura Special to USAHockey.com Seeing is believing. Labor of love. Take your pick, but each of the above phrases is appropriate when describing Massachusetts Hockey third vice president and American Development Model chair Don Derosia. Over the last several months, the Chicopee native has packed a set of boards in a trailer and traveled around the state espousing the virtues of USA Hockey’s ADM.