Here's the INT. After the four throws shown above where Kap pulled the trigger when he saw 1v1 man coverage with the CB in a trailing position, DEN opens the second half with this.
3Q 3rd & 3 (first possession of 2nd half)
DEN shows press alignment. Based on how we know this play ends, we can assume Kap has made his pre-snap based on the defensive alignment he sees and how he knows SJ is going vertical. Talib is #21
The ball was just snapped by Kilgore. Notice Talib getting out of his press alignment.
Kap looks straight ahead to hold the deep safety. Talib starts to bail on Ellington. In doing so, Talib is basically giving up any sort of short inside breaking route to Ellington. In this case, a short In.
After holding the deep safety, Kap sees that the CB on SJ has his back turned to Kap. That confirms his pre-snap read of man coverage, trail position. Kap (mid windup) throws to SJ without checking what Talib has done. I say this because had Kap glanced at Talib, there's no way this pass is thrown with Talib watching Kap and bailing while in such close proximity to where the throw is headed.
It happens really fast, but right before the GIF starts, Kap looks to his left (away from where he will throw). Once he gets the snap, he looks straight to hold the middle safety. I don't think he bothered to check what Talib was doing. He assumed Talib was also playing press man based off the pre-snap alignment. Looney gets owned and the pass is off the back foot.
[ Edited by thl408 on Oct 22, 2014 at 3:50 PM ]