DALLAS — coach Pete DeBoer will make the walk from the dressing room to the bench at American Airlines Center for Sunday’s Game 7 with more confidence than most coaches would have in a must-win game. At least, he should. Statistically, he’s the best Game 7 coach in the sport’s history by a wide margin. A win Sunday would be his eighth. It would tie him with Darryl Sutter for the most Game 7 wins behind a bench in history. The difference is DeBoer will have coached in only eight of them.... Read this story