I'll believe Sankey when I see it.
The memo in theory sounds great. In practice, it will be Sankey's word vs the team doctor. In the age of "player safety" that is not a battle he's going to fight.
I think you'll stop seeing egregious cases like that dumbass Bama fake injury. But all that really means is that coaches will be smarter about it. "If there's a big play, go down" will be explicitly taught. And Sankey is not gonna say **** if there's even a 5% chance on replay the player is really hurt.
Wolf ticket memos don't matter. It needs a rule change. Treat injuries and "injuries" the same. If a player gets hurt, he sits for the drive. You could start there.