I have been playing rugby for last two months with Nevada Reno team. I played in last game of season, on B side and experienced why a 150lb guy must try to tackle a 220lb guy coming in fast very low (ha, splat). Since then we have been playing touch rugby with local semipro team Reno Zephyrs.
There seems to be two modes of offensive in rugby: 1) power running on scrum side of field behind the big forwards, or 2) get ball out to backs (fast guys) in space and try to defeat the one defender in front of them. This initial penenetration is done by either jukieness, extreme acceleration, or drawing in defender and at last instant passing (back) to a support runner who then finds a hole.
The passing doesn't end there. It seems very common to continue to lateral L and R down the field to goalline to whoever has the least pressure on them. There are amazingly few fumbles.
Question to the football experts out there... In spread the idea is often to get ball to agile fast guy in space and have them defeat a single defender (seems so far like rugby). So... why not have a support runner or two on either side run up behind for a lateral and really blow by them? i.e. I wonder if this common rugby offense (proven effective ...)would have any application to football... more lateralling... ?