As the head coach at Chatham Township and Chatham, Cohen has enjoyed tremendous success in the game. Chatham Township won Mennen Cups in 1976, 1977, 1978, 1979 and 1981. Chatham Township lost to Brick in the first state championship game in 1976. His Chatham High club reached the Public Schools finals in 1995 and 1996.
The veteran coach, who picked up his 500th career victory in early December of 2009 with a 6-1 decision over Princeton Day, coached Dave Williams, a player who made it to the NHL.