re: A 50 yard, cross body, cross field pass on 4th & 10

Obviously we do not know what play was called, but it looks like you are right in that White came up to cover Davis as he leaked out over the middle. But, when he saw the Safety (I didn't see the number, but many are pointing to Vaccaro) he sprinted back to Crabtree.

I'd imagine the Safety should have deep coverage and should have been backing up to Crabtree; however, what was the coverage called that let Davis leak out so deep. Was a LBer suppose to be underneath? Did another DB have coverage on him underneath and let him go upfield? If so, where were they, in a zone defense aren't they suppose to keep getting depth if no one is in front of them, or is that more of a recreational/HS thing?

We only rushed 4 and had 7 people to cover 5.