If there wasn't a second inside coverage guy I could get on board but with Simm's idea but where Allen threw the ball was so far in front of Davis that really only the defender had a chance of getting there first. The best and only out I can give Allen, and in my mind it's reaching, is that somehow the inside WR blocked Allen's view of the 2nd underneath coverage guy and somehow Allen didn't know he was there. All that said when the LB blitzed Allen should have immediately dumped it to Knox.