Ravens appeared to only fear two receivers - Diggs and Isaiah McKenzie. When McKenzie went out they went to Cover 1.
Davis seemed to be in there in Jake Kumerow - to block - and it shows why Bills kept Kumerow.
The Bills had a plan for first half, it was not working and they adjiusted it including new personel and executed in 2nd half; this was something they were not able to do previous years.