I find it strange that people keep coming back to the 7 when we've just played a game where we've been smashed by players like Eztebeth, Oosthuizen, Retallick, Whitelock, Faumuina etc. depending on which test it was.
Having a figurehead to point at and blame is always the easier way out.
The Hooper/Pocock argument is a bit like Hooper/Gill for me. By selecting Hooper you concede a degree of breakdown dominance with the understanding that you'll get a far superior ball carrier. With Palu and Higgers both out, and with neither of the starting locks being strong carriers (Horwill is when fit, granted) it's relatively easy to see why McKenzie has carried on with Hooper. Mowen and Fardy are both grinders who hit a lot of rucks, so the loss of Gill's breakdown work is somewhat offset.
It's a similar equation with Pocock. Is his breakdown dominance worth the loss of the carrying game Hooper brings? I think yes, with the caveat that we'll have to wait and see what his form is like. He's been out for a longg time and there's just no guarantee he'll be able to walk straight back in. Fortunately, return should coincide with the return of one, or both, of Higgers and Palu. At that point you're trading the ball carrying responsibilities to the 6/8 and getting your 7 back to being a breakdown beast. Is Pocock + Higgers/Palu more valuable than Hooper + Mowen? Again, I probably think yes.
So much of this will come down to form in the Soup though. Pocock just might not be right, Hooper might shift his focus and start playing a genuine 'fetcher' role, Gill might take his linking play to a whole new level, Colby might have an enormous season and force his way into the equation. That's even without taking into account injuries and what will be happening with the rest of the pack.
tl;dr, we've got a lot of good opensides. How we use them will, and should, be predicated on who the remaining seven members of the pack are.
Also, it would be really fucking handy to have a proper carrying lock.