I know the Packers have built the pick play into their offense for many years and it's rarely called on them, but it's actually been illegal this whole time, the refs just rarely called it.
Blows my mind that the most obvious penalty would be the one someone would point to as evidence refs favored the Lions.
People may think Campbell listens to his coaches in his headphones, he actually has someone reading comments from reddit, Twitter, and here calling him stupid.
"you think that's stupid man? Watch this man"