Brian Moore's BBC article. Finally someone talking sense, analysing the issues intelligently. Calling for a reversion back to the old interpretation of unchanged rules/refereeing of the scrum we might finally close the Pandora's box!
http://www.bbc.co.uk/sport/0/rugby-union/21952652
Go back to the old ways: forwards engage but don't push until ball's in (penalise those who do). Ball in straight - feed coordinated between hooker/scrum half (penalise crooked feed). Hooker's feet remain on ground until ball's in (penalise lifting of the foot), then actually hooks (or competes). Ball channelled back to No.8, who can control (if pack has forward momentum) or release to scrum half ....
Yes, ABs developed the snap-shove which helped them drive packs off the ball and win ball against the head. In response, packs that were driven backwards would either need to meet the force, or wheel beyond 90degs - calling for a reset and/or collapsing the scrum. How about this? The AB snap-shove is a genuine tactic. If packs cannot counter it through resistance, and are forced backwards - why should this attacking tactic be denied? If a weaker "on the backfoot" side must resort to deliberate (and dangerous) defensive wheeling - penalise them. Reward the scrum with forward momentum.
Cadence, winning the hit, emphasis on power - all have led to unecessary rule interpretation band aids aimed at trying to bring balance back to the scrum and counter what essentially was a novel tactic developed by ABs. There should have been a better response from the IRB - i.e. no response. Teams/scrums should simply get better. It didn't and shouldn't need the interference of IRB to sort something out that natural development of tactics/counter-tactics would have resolved anyway.