I suspect Corey will play a sort of Clarke role at HF. I can't imagine they'll throw him to the wolves by making him run with Rioli like Clarke might were he to play, but high octane running up and back with tackling pressure I suspect will be his main instructions.
And I reckon it means Cunningham will be in defence because they'll go with Rampe, Fox and Blakey as the talls. So Warner takes Harry's spot. McLean in for Franklin.