He shouldn't play but at this stage of the competition he's already on the team sheet to face The Aussies.
The team to face Australia is sooooo difficult to call. On the one hand, you would say rest Stokes and Root, probably Wood too given his history, and make sure we have all of our best players to pick from in the semi final. On the other, we want to stamp the Aussies out now if we possibly can, so perhaps you go strongest XI.
Obviously, there is the Bairstow issue, but I think we all know that even if he developed into a Murali class off spinner as a second string overnight, he's not getting a game!