DENVER — Before a blizzard engulfed Empower Field and rendered his offense ineffective, Denver Broncos Coach Sean Payton saw a chance to put a stranglehold on the New England Patriots early in the second quarter of Sunday’s AFC championship game. He ordered his offense to remain on the field for a fourth-and-inches call from the New England 14-yard line even though simply kicking a field goal on a dry field would mean taking a two-score lead, a margin that might have felt insurmountable given the forecast of second-half snow and the way Denver’s defense was dominating.