5 things we learned from the Chiefs falling flat in Denver

Photo by Dustin Bradford/Icon Sportswire via Getty ImagesAfter eight years of losing to the Kansas City Chiefs, the Denver Broncos finally have something to celebrate after beating the world champions 24-9 on Sunday afternoon. It had to be one of the sloppiest and flattest offensive performances we've seen in the Patrick Mahomes era.

Here are five things we learned from the game.

1. This offense isn’t good enough to overcome mistakes

Photo by Justin Edmonds/Getty ImagesIn recent years, one of the Chiefs' calling cards has been their ability to come from behind and win. But Kansas City no longer has the offensive firepower to stretch the field and score quickly.

After having a big game against…