OPINION: The single biggest difference between New Zealand and England is their lines of attack. What the All Blacks do better than any other side is in their ability to run straight and square at a defence. The advantage of running straight at a defender is that it forces them to put both their heels down. Once you have got a defender to do that and you are running at them, then you pretty much own them.

England's victory against Australia last Saturday was a thrilling game, but it was noticeable that the fastest players very rarely ran square. Instead, Jonny May, Elliot Daly and Kurtley Beale were running across the field towards the edge of the defence.

The only time you will see Ben Youngs play straight is when he is taking a quick tap penalty. When he is playing at rucks he often has his shoulders on a slight angle to try to entice the second or third defender to bite so he can put a forward through a gap or go for it himself.

HANNAH MCKAY/REUTERS Owen Farrell is far more dangerous when he is going square.

Contrast that with New Zealand's Aaron Smith. If you watch when he picks the ball up at a ruck, his shoulders are usually square. Then, when he attacks the fringes, he is running straight at the guard. The All Blacks forwards' anticipation of running lines is also much better. You see them running onto his passes without having to change gear. In the northern hemisphere, we get into position early, but wait for the ball and then start running, which means you have less momentum.

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Even if New Zealand do not break the tackle line on the first break, they keep forcing you back. Brodie Retallick and Dane Coles have got that ability to take the ball to the line and give that shoulder ball to the outside to someone else who is also running parallel.

Once you get going, it is like wave after wave of attack coming at you. It is dead straight, which means that your defence have to get tighter, and then they can get the ball wide, which is why you often see their wingers have walk-ins. I do not necessarily think one style is better than the other, and you often see Beauden Barrett sliding on the ball, but to be the very best you need to have that variety of styles at your disposal.

The key difference compared to other teams is that players arrow in, rather than slide away from, the ball-carrier. In the English Premiership, Saracens' Schalk Brits does that better than anyone else when he comes from the outside channel to the inside channel.

Northern hemisphere sides tend to slide away from the pass and try to break to the outside. There is an ingrained habit to look for the edge with midfield interplay or loop moves. This was a big feature of Bath under Mike Ford, and then again with Owen Farrell and Jonathan Sexton for the Lions. You bring the midfield defence together, hold the inside centre next to the outside centre, the 13 becomes the corner and then you have someone coming around the corner on the arc.

Sometimes you can be too elaborate. You can still beat those same defenders by running very straight at them. Farrell is dangerous running straight at a defender. Harlequins' Marcus Smith also did this well against Exeter last weekend. It makes forwards' feet go side by side. Once a defender has both their heels down, you are going to make ground or a line-break.

This is the next stage for England. If Eddie Jones wants to beat New Zealand in 12 months, they have to find another style. The Australia game was exhilarating to watch but this side-to-side style is not going to work unless they start getting their scrum halves and Farrell, who is one of the best in the business, going square.

People talk about New Zealand losing their aura and about sides catching them, but until sides can run the lines that the Kiwis run, then they will always remain ahead of the curve.