Saints safety Tyrann Mathieu

On the fight and Lattimore being ejected:

"Obviously, he is one of the better cornerbacks in this league. For the majority of the game, guys weren't able to catch balls on him. I think that's a tactic that guys will use playing against him to get him out of his game. I think in that moment we all kind of have to respond."

This right here.
Sorta like when hockey teams will send in a Goon to start a fight, I can see them sending in a nothing player to poke the bear and get a penalty or ejection.

I hope they have a meeting with ALL of the players and let them know that this is going to be an ongoing theme for the season if they can't get it under control.