AAC (Adam Ashley-Cooper) has been put at 14 at test level because we're short of wingers but he's arguably the form 13 in the whole of Super Rugby and if it came to the crunch I'm pretty certain he'd get the Wallabies 13 position ahead of Kuridrani at the moment.
That said, he's excelled at 14 for the Wallabies whenever he's needed to play there.
We're definitely short on specialist wingers right now particularly with Cummins leaving and Speight not yet eligible.
The next specialist winger is probably Tomane and he's missed plenty of time through injury this season and is still being kept on the Brumbies bench.
Who do you suggest? I don't think it's particularly different to the All Blacks picking Ben Smith or Charles Piutau on the wing. Some players are good enough to play multiple positions and it's worth moving them to fit them into the side ahead of playing specialists who are of lower quality.