The NFL season is taking shape as teams begin to identify themselves as contenders and pretenders. Here are the power rankings entering Week 7.

Ralph Vacchiano is an NFL Reporter for FOX Sports. He spent six years covering the Giants and Jets for SNY TV in New York, and before that, 16 years covering the Giants and the NFL for the New York Daily News. Follow him on Twitter at @RalphVacchiano.

There are major changes at the top of the power rankings as the Chiefs knock off the Lions and we drill down on impact fantasy players.

NFL Week 7 power rankings see shift after Buccaneers top 49ers, Colts edge Cardinals, Steelers beat Browns, Packers defeat Bengals, Chiefs top Lions.

Tom Brady says "you can't argue" with his new No. 1, while the Bills and Eagles take deep drops in his power rankings.

Following the Dallas Cowboys loss to the Carolina Panthers, where did pundits place the Cowboys on power rankings lists?

There's plenty of movement in our NFL Week 7 power rankings, including the Bills falling and the Bears rising.

Once again, the weekly power rankings has a new team atop the totem. The Detroit Lions went into Kansas City riding a four-game winning streak, but left with a bad attitude after getting folded up by Pat Mahomes and the Chiefs.

FOX Sports' Ralph Vacchiano points to Week 7's tilt as being the real challenge for the Texans to prove themselves as back to their old selves. "After winning their past two games by a combined score of 70-10, the Texans come out of the bye and head to Seattle. That’ll tell whether they’re really back or not."–– Ralph Vacchiano

So where did Penix stand land on CBS Sports' latest QB power rankings? Despite leading Atlanta to an upset over Buffalo, Penix remains at No. 19. Meanwhile, Allen is still ranked as the top quarterback in the league.