Kelman’s comments come on the back of the announcement that the league will switch to a three Conference set-up for the 2017/18 season.
In a statement on the club’s official website, Kelman issued a challenge to the teams that think the ones the Devils share a conference with have a right to bigger crowds and more income on ticket sales and sponsorship.
“Work harder,” said Kelman. “Work harder every day to sell tickets and sponsorship and group packages and corporate hospitality.
“The conference system is a solution to keep us all in business, but it’s only half the solution. The other part is the hard bit.
“Get up and sell every day. Open early, stay late, go to every networking event you can, hire more staff and take the chance on them bringing in more than they cost.
“We don’t sell out because we have a new arena or a great team. We have a great team because we sell out and my MVPs are on the phone right now selling tickets and chasing sponsorship and out at meetings. And it’s April.”