Amongst other things, I am pretty worried about our exits.
Running multiple phases out of your 22 against a set defensive line is something that can work in Super Rugby, especially with what is probably the best pack in the comp. It's too risky though at Test level, so I hope that we clear it earlier in the future.
That is just one of a few tactics that Cheika used in Super Rugby that worked really well that I am a little worried would fail at Test level. Another is neglecting the set piece for fitness/linking training.
I thought initially Cheika wouldn't do some of these things (particularly as the Tahs side he had allowed him to), but I am getting a little worried.
Jury is still out, though. Cheika needs enough time to implement what systems he thinks will work, then I guess people can judge.