From what i can read, it seems the Ends responsibility is to get upfield without as much requirement to be an anchor at the line. Naturally, this suits a slighter end and to be honest is much more fun for the smaller guys without as much lead. Allows them to play at a more "normal" weight for their bodies/ strength. I'd say this defense is a better fit after 2 weeks...we'll see how the engine is running in December, maybe rotation will suit as well as the system.