I'm sure it was one of those deals where he came to the huddle with 3 play options, and he was able to choose at the LOS which play to run base on the defensive look he got. We actually had no receivers and 6 Linemen in the game.
I hear Cam out there checkin in and out of plays all the time.
I don't know why this is so shocking.
Easily one of the more overlooked things Cam really excels at.