SportsPulse: We are inching towards the midway point of the NFL season and the league power structure is starting to take shape. Mackenzie Salmon provides the risers and fallers in this week's power rankings. » Subscribe to USA TODAY Sports: https://bit.ly/2L0ktE1 » USA TODAY delivers current local and national news, sports, entertainment,  finance, technology, and more through award-winning journalism, photos, videos and VR. #NFLWeek9 #PowerRankings #KansasCityChiefs