Losing to the Bills isn't good, but I think Sunday's upset -- which I picked as my upset of the week -- can be written off as a letdown coming off Denver's big home win over Dallas. Quarterback Trevor Siemian will be better in his second year as the Broncos' starter. He might not win too many games by himself, but he's a sneaky good passer with smarts and accuracy, while the offensive line around him is so much better than it was last year. The offense has shown improvement, ranking 11th through Week 3 after finishing in 27th in 2016, while the fourth-ranked defense is as strong as ever, especially against the pass. The AFC West is imposing, but I could see three teams making the playoffs out of there this season.