"Coach Patricia, flat out," Daniels told reporters, according to the team's website, when asked why he chose to sign with the Lions.
"He's just a genius. He really is. He understands the game of football. He knows what it takes. So to be able to play for a coach like that, it means everything. I'm really trying to be restrained right now because I'm so excited. If I could do a backflip right now, I'd do one, but I can't. I'm really excited."
Daniels went as far as to say he's happy the Packers cut him loose so he can now play for Patricia.
"I thank God that I got cut and I have an opportunity to play for a genius," he said.
Daniels signed a one-year deal with the Lions on Friday. A source told ESPN's Adam Schefter the contract is worth $9.1 million with $7.8 million fully guaranteed.
Daniels, a Pro Bowler in 2017, has 29 career sacks, three fumble recoveries and two forced fumbles.