I guess the window was still open after all. Probably wide open in fact. Remember all that preseason talk of how the Buffalo Bills' window for winning had closed, how it was over for them, how the roster turnover would change the team's fortunes and that they couldn't get past those losses on the field in the playoffs and on the roster?

Should Kansas City Chiefs, Buffalo Bills or Detroit Lions be ranked No. 1 now? For first time this season, there's debate.

The Lions blew out another team, while the Chiefs suffered their first loss of the season. Here are the power rankings after Week 11.