While League is my preferred code I can , sometimes appreciate the 15 code,
Got into a discussion with a friend who is a Sale Sharks fan, I tried to point out the Union has adopted far more from League than the opposite .
I think League led the way with substitutions, Video Refs, Communication between assistant refs and ref, banning the shoulder charge, uncontested scrums, sin-bins...
Are there any others, and what has Union given to league? (Although I wouldn't say no to their quality of administration)