And both Cox and Dixon already have defender on their resume don't they? Plus we already have Logue and Duman who are outside of our current best 22, and while they may not be week in, week out candidates for the two key tall defender positions, they would be able to cover when required.
They may be shorter (and played Saturday) but I’d rather Hughes or Nyhuis play that role and Duman replace them. They mark the ball better and don’t kick it as well as Duman.
Dixon is at the back of a long list of KPFs - I’d send him back and keep him there until the time comes when our KPFs are all injured (hopefully never).