in my opinion it's both, the WR's don't seem to separate or at least separate fast enough but it's also on Brady, why does this guy continue to not get Cook involved in the passing game? If Coleman isn't an outside WR move him into the slot and see if he can become dominant there. Move Shakir to the outside and see if he still has the same juice there. TRY SOMETHING other than just putting out the same stale offense that heavily relies on Cook putting up 200 yards each week.