The easier answer would be the Kansas City Chiefs, who started the season at 1-5, but it's hard to overlook the 10-game win streak that secured the fifth seed, even though only two of those 10 wins came against fellow playoff teams. So if not the Chiefs, then their opponent, the Houston Texans, right? (If for no other reason than the simple fact that they got here by way of the lowly AFC South, and even that was a challenge.) Not in this case. Traditionally, one-and-done is reserved for a team that is actually playing in the opening round of the playoffs -- rather than watching from home after earning a bye and the No. 1 overall seed in the conference field -- but when I look at the Broncos' on-field production and situation as a whole, it paints a different picture.