I haven't yet seen the entire game (and unless I'm going to look at it from an analytical perspective, not sure why I would finished watching the full 4th quarter), but I would be interested to see if it was Stanley coming off too quick, if Stanley's feet in the pocket/drops were too inconsistent, or the receivers not getting into their stems/getting help up and messing with the timing of the route. I'm sure you know this but there is a point to why some routes have a 3 step drop, 3 step + hitch, 5 step, 5 step + hitch, etc. The routes are designed to come open at certain times within the drop. For example, in a 5 step drop, as soon as the QB's back foot hits the ground, he should be ready to throw to the intended receiver within the route concept unless it's taken away. In some cases this read is being done while the QB is making the drop and knows by the time his 5th step hits the ground, his intended receiver is covered and the throw will go to the 2nd progression (a good example of this might be a curl/flat combo...if the flat defender pass drops to get under the curl, the flat is drilled through the outside shoulder as soon as that 5th step hits the ground).
Another thing is that often times you'll know immediately that working one side of the field isn't going to work as soon as post-snap movement takes place within the defense. Take the aforementioned curl/flat concept...if you get 2 high safeties and corners who force inside releases with their eyes inside in a "sit" technique, you are going to want to go away from that side of the field because curl/flat is not a great cover 2 beater. You'd be best served to work your checkdown vs. making a dangerous throw into a coverage that is somewhat designed to stop your particular play.
What I feel like I do remember seeing in the first 3 quarters that I watched very hurriedly was that we threw a ton of short routes (other than one catch I remember, could Easley do less with an 8 reception day than what he did?) and in most cases it felt like that was the play we were trying to run (bubble screens come to mind).