The NFC North champions used all four of their quarterbacks during the game, but none of them could find the end zone.
The head coach told the Packers website: "Tonight's contest, not exactly where you'd like to start, 0-17, on our home field. Offensively, obviously, the turnovers.
"Our ability to take care of the football is something [we] stress. We didn't take care of the ball and we did not take the ball away. You have to take care of the ball and take it away.
"We've got a lot of film on a lot of guys. We'll take a hard evaluation in the morning. This is step one. This is where we are."
The Packers face the St Louis Rams next Saturday.