Guys.. The P. Smith as a CB thing isn't that unusual. They had a HB, FB, TE and 2 WR grouping. We countered with a standard 3 -4.
They split the TE out wide and put the WR in the slot. If you're playing man, maybe a single high behind it because you want to put an extra S in the box, a LB will typically follow the TE.
If they sent Cook out wide, we would have seen Barnes or Harris play CB then. It's not that unusual. I would have preferred to see the safety go out there instead, but they stayed with that match up.