Sean Payton’s been telling his team all season that they’d eventually be playing in bigger games. Those games are here and so far the results are mixed. The Broncos started slow but dominated late to beat Indianapolis and get to the doorstep of the playoffs. Then they did the opposite and squandered a dominant start against the Los Angeles Chargers in their first chance to clinch a spot. Each game showed how small the margin is this time of year. If Colts running back Jonathan Taylor doesn’t drop the ball at the goal line in the second half of Week 15, Indianapolis goes up 20-7 and perhaps wins that game. The key sequence from a momentum standpoint in the Broncos’ 34-27 loss to the Chargers?