After destroying the Eagles, Dallas believed the hype and went in soft this week. Jim Harbuagh, as 49er coach, warned the team often about letting up against lesser opponents (he does the same with the Wolverines).
He invented a character called "Freddy P. Soft" who, according to Harbaugh, works as follows:
"He's a four inch guy, that wears a cape and a hat with a plume in it. He's just tall enough to talk right into your ear and tells you, 'You don't have to practice today,' 'Why are you working so hard?' or "Get over there in the shade. There's no reason to attack with an enthusiasm unknown to mankind today. So take break. Take a knee.'"
"Yeah. He's a guy that you don't want around. You want to get him off your shoulder as fast as possible."
https://footballscoop.com/news/freddy-p-soft-jim-harbaugh-explains-hes-voice-responsible-soft-players
Not all NFL coaches are as corny as Harbaugh, but they do take the concept seriously: never let up.
Something got to the Cowboys this week, and Buffalo's new resolve flattened them.