Yeah listen Chaika mightn't be the cause of the issues, but he has made it his issue by surrounding himself with people who are the problem. When you select the defensive coach of the team with a shocking defensive record, and the attack coach from a team with one dimensional attack, you subsequently make their problems your problem.
Who's decision was it to select a centre pairing of Kerevi and Beale? At the end of the day Cheika is the head coach, he dictates selections, and if his assistant coaches aren't implementing an effective game plan then it falls at Cheikas feet to rectify this.
Cheika is the head coach, the buck stops st him.. just like it does in any other organisation, the CEO is ultimately responsible for ensuring all departments are working effectively. So enough of this Cheika apologists crap, if he doesn't want his name muddied then do something about it..