NEW ORLEANS — At 8:30 a.m. Sunday, an improbable pair entered through the back doors of the big ballroom, as cameras clicked and heads turned and the Superdome waited a mile away. They walked past rows of occupied seats and climbed two stairs to the stage — sitting behind three black tables, two helmets and a trophy in between. The trophy shone in silver and the same gold as the Huskies’ helmet, with a miniature football atop an ornate cup sprouting from the roof of the Superdome. On its base, four words teased in bold gold type: SUGAR BOWL CLASSIC CHAMPION By roughly 9 p.m. Monday, either Kal…