New head coach, same old Browns.

The Chiefs torched Cleveland in the debut of interim head coach Greg Williams, who replaced the fired Hue Jackson on Monday, with a 37-21 blowout. Chiefs quarterback Patrick Mahomes continued to build his MVP case, completing 22 of 32 passes for 375 yards and three touchdowns with one interception.

But it was two other Chiefs who really punished the Cleveland offense. Running back Kareem Hunt totaled 141 yards from scrimmage and three total touchdowns, while tight end Travis Kelce caught seven passes for 99 yards and two touchdowns.

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Browns offensive coordinator Freddie Kitchens operated in his new interim role for the first time Sunday after the team also dismissed Todd Haley on Monday. And though Cleveland’s attack started the game slowly, it did show some improvement over the struggles of the previous weeks.

Specifically, running back Duke Johnson became a focal point of the offense, catching all nine of his targets for 78 yards and two touchdowns. Rookie quarterback Baker Mayfield played far more efficiently until the game got out of hand, completing 29 of 42 passes for 297 yards and two touchdowns. With the Browns down 16 points late in the fourth, Mayfield forced an interception to Chiefs cornerback Steven Nelson.

“This is not a rebuild,” former NFL head coach and current CBS Sports analyst Bill Cowher said earlier on NFL Today. “You have your franchise quarterback in Baker Mayfield. You have a top pass-rusher right now in Myles Garrett, and some good young players in the last few years. Clean house. It's a toxic environment up there right now.”

Cleveland will try to get the first win in the Williams era next Sunday when they host the Atlanta Falcons.

Follow Lorenzo Reyes on Twitter @LorenzoGReyes.