what the patriots have done on the D-line this year has been pretty impressive, they have alot of rotations specifically built for situations.
you look at guys like brace, deaderick and pryor and they are just really big guys who crash the line and eat up alot of blockers, they are also pretty good at protecting mayo so he can make a tackle, it sucks that spikes is out because i feel like a good running team can exploit his absense, but the final teams we face arent really that great at running inside anyway, so it isnt that big of a deal.
watch the D-line in one of their games, the patriots linemen are so big that they can beat most blockers 1 on 1 and have done well enough shedding blocks that they make a tackle too, as well as they are doing, it really makes you wonder how much they really need another elite 5 technique like Seymour.