Selenski got his start as a coach and general manager with the Troy Slapshots of the Atlantic Coast Hockey League. The Slapshots would see limited action in the ACHL, playing only six games before being suspended by ACHL Commissioner Ray Miron. Shortly after the leaguewide dispersal draft, the Mohawk Valley Comets would fire their coach (Bill Horton) and replace him with Selenski, who assumed the dual role of coach and general manager. The Comets would go 22-22-3 under Selenski and make the playoffs. However, the Comets would eventually lose to the Virginia Lancers four games to three in the Payne Trophy Finals. After the completion of the 1986-87 ACHL season, the Comets transferred to the AHL and were later rebranded as the Utica Devils, and the ACHL was folded by Commissioner Ray Miron.
