DeBoer, who took the Devils to the championship round against the Kings in his first season, was fired Friday, with his aging and short-handed team in danger of missing the playoffs for a third consecutive season.
Lou Lamoriello, the Devils' president and general manager, won't say who will be the next coach until he speaks Saturday with the players, who are on a three-day Christmas break.
There are a number of potential candidates, including Adam Oates, a former Devils assistant; Dallas Eakins, who was fired earlier this month by Edmonton; and former Penguins coach Dan Bylsma.
Jack Eichel and Chase DeLeo scored in a shootout to help the United States beat defending champion Finland, 2-1, in a round-robin opener in hockey's World Junior Championship at Montreal. Eichel is a freshman at Boston University, and DeLeo plays for Portland in the Western Hockey League.
In the other Group A game Friday night at Bell Centre, Canada played Slovakia. In Group B in Toronto, Russia rallied to beat Denmark, 3-2, in a shootout; and Sweden topped the Czech Republic, 5-2.