No top class half on the market now, or next year, so Barrett has to change the tactics. That's all that's available to him to change up the attack. It's not working at present 3 games in and Flanno hasn't shown any promise he can work with Burton either. If he drasticly improves in reserves and Wakeham fails, then look at Flanno then...but gee won't we be desperate by then and so far off the pace behind the front runners.
If Barrett is a coach who can't work that out then the spotlight must be put on all coaches, and the GM Football, as well, to start scoring points.