Bruce Arians wasn't happy with the Tampa Bay Buccaneers after their 29-19 loss to the Washington Football Team on Sunday afternoon.

The defending champions are 6-3 following two straight losses.

"It's very disappointing," Arians said. "It's very alarming to watch the energy at every practice and show up with a lack of execution and energy that it takes to win on Sunday. We've got a lot of soul-searching to do."

Washington entered the game with the NFL's worst pass defense and Tampa Bay was favored by 10 points.

"It has nothing to do with ability," Arians said. "It's about execution and being a smart football team. We're a very dumb football team. And that's a reflection on the coaches."