There is a bunch more than Corey Raymond wrong with that. I don't even know why they were 17 yards deep anyway. This is a freshman QB, not Tom Brady. He wasn't beating us 40 yards deep if we crept up. Even if you somehow didnt want to play a tight man coverage, just moving the safeties to to 12-14 yards makes everything much more condensed. Standing two yards behind the line to gain just is silly.
Go back and look. EVERY receiver except the one on the left was open. That isnt just one guy screwing up.
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The screenshot is a tad deceiving because that crossing route at the 50 yard line looks covered but it isn't. That safety was standing flatfooted and that receiver was smoking from the righ (offense right slot). That is a slightly harder pass but he was open and it would have been a first down. That reciever started in the slot and is also what slowed down Nunnery, I suspect as he was reading that initially to see if it was a seam route and his responsibility.
Both receivers on the right were open and Im not sure that the pass wasn't intended for the deeper receiver. I think the commentator said the same thing, if Im remembering the right play. I like Castelle, but he is 30 yards deep and bailing vs no one. I just have no clue what he was taught or what he was seeing.
I don't know who was covering the left receiver but he was perfect, in phase and right on his hip.
The checkdown to the RB was there but your are really only worried about a wheel route there.