I hate the word tanking. In footy history there have been maybe a couple of clubs who have deliberately lost games. That is real tanking, and it is incredibly rare. Yet people trot out the term every time a team sucks. In footy, as in life, one should always remember Hanlon's Razor: Never attribute to malice that which is adequately explained by stupidity.
Carlton has such a poor grasp of its list, that if they put out blokes there were certain couldn’t play, they'd probably win.
As for GC/GWS, they have so many good young players, it's scary. If they have any deficiencies in their lists they will easily be able to trade their way around them. What will be interesting is the salary cap. They were given an increased cap and huge numbers of draft picks, but in a year or two they will have squads choc-full of talent, but with the same (or at least similar) cap as everyone else. Very few of their players grew up on the Gold Coast or Western Sydney, and many would think a move back home for more pay/better lifestyle/more opportunities might not seem like a bad idea.