Not a problem, St Catastrophe of the Injuries will take are of that.
We're still developing in the pool of professional sport in rugby in Australia. Rugby in Europe has the inestimable advantage of apeing soccer (with a few detrimable points, I'll get to them one day) and their large rotating squads. Resting players has been traditionally anathema to Australian (and New Zealand and Saffer) coaches, but we should take a leaf out of the European sport managers' play books. Added to their demands we do a shitload more travelling than they can even imagine, and we STILL demand the best 15 on the paddock for every match. The smart coach who decides to manage his squad for the duration of a Super campaign will be the bloke who succeeds; this'll be the way in future. Possibly Cheika's stint at Paris St Germain'll stand him in good stead, as it did for Link.