It's a subset but somehow when other teams set it up they have 5 or 6 blockers on max 3 Buffalo defenders. When the Bills run it they have a TE and a couple receivers vs 4-5-6 defenders. The play works when you overload and they're in a zone and you outman them on the edge, but it works so well against the Bills as a zone heavy team, and doesn't seem to work for the Bills because it's telegraphed and/or run straight into man coverage.