McCabe brings a hard hitting defence alloyed to very good close support in breakdowns, and a direct attack that straightens defences. His workload, and the quality of that load, read dominant and key tackles, when combined with Pocock, give us a defensive structure that saw us the best defenders in the 3N. In RWC 1 and 2 we conceded no tries. Yet in 3 and 4 we conceded four. 3 of them vs Russia.
On the other hand Berrick, who certainly can tackle, brings a more dynamic attack, and apparently takes the pressure off Quade, particularly with his kicking but brings less defensive impact.
Defence is 50% of rugby. Is Quade that bad we need 2 playmakers?
http://i.stuff.co.nz/sport/rugby/5730944/Wallabies-consider-backline-options-for-Boks
Point being McCabe brings his own brand of excellence to our game, and it works.
Berwick does too, but the above is why I believe McCabe is so valuable.
We're about to take on Roussouw, Brussouw, Burger and Fourie.
If we win that, we face Kaino, Read, Nonu, McCaw, and the Ab Backline at their best form in two years.
And that is why I like McCabe. We have a wealth of attack, McCabe and Pocock temper that offense.