Since retirement, he has served as the head coach of several NHL teams, including the Sabres,[1][2] New Jersey Devils,[3][4][5] Washington Capitals,[6][7][8][9][10] and Phoenix Coyotes.
[13] Schoenfeld is remembered for an altercation with NHL referee Don Koharski after game 3 of the 1988 Wales Conference Finals after his New Jersey Devils lost 6–1 to the Boston Bruins.
Schoenfeld was waiting for Koharski when he left the ice and immediately began arguing with him in the corridor between the benches and the Devils' dressing room.
Schoenfeld denied touching Koharski, and when the official said that he hoped the exchange was being recorded, yelled back, "Good, 'cause you fell, you fat pig!
[14][15][16] Schoenfeld was suspended by League disciplinarian Brian O'Neill for the following game, but the Devils sought a court order to overturn the suspension.
After more than an hour's delay, three local off-ice officials – Paul McInnis, Jim Sullivan, and Vin Godleski – were tracked down to work the game.
[30][31][32] However, starting in the 1993 playoffs until his departure on January 28, 1994, he worked as the studio analyst with hockey writer Al Morganti and host John Saunders.