play action vs stacking the box

The play action on the stretch play where Goff hit Kupp for 19 was a great example of how they need to counter those '9 in the box' situations. Goff has the ability to move around and roll out. And when they run stretch plays like that and then go play action guys like Kupp and Everett are going to get open consistently. And when Watkins gets added fully to the mix I'm just not sure how many times defenses will go to 8-9 in the box anymore.