This is the law of the NFL: One week, you can look great. The next week? Not so much.
In case you forgot that, the Chiefs’ 27-20 win over Philadelphia on Sunday before an announced crowd of 74,971 at Arrowhead Stadium served as a perfect reminder.
A week ago, the Chiefs were the toast of the NFL. Their season-opening win over New England opened eyes around the league, as they relied on a newfound dynamism and mental toughness to hand Tom Brady and Bill Belichick their second regular-season loss at home to an AFC opponent since 2007.