This is what they mean by processing time. He sees St. Brown and if he pulls the trigger right away he's got 6. But he delays for a second and in that time it seems like the CB has recovered to close some of the gap and ultimately he doesn't think its a safe throw because if its underthrown its an INT. At least that's how I see it as a complete amateur film watcher. Beyond a doubt, nearly any other QB would have pulled the trigger, overthinking, lack of confidence, playing scared, fearing a TO, is not going to work. He should know that if he doesn't, he 's as good as gone.