They don’t “definitely” score the runs.Australia should have scored 300 today. (300/5 would have been better than 255/4, but at least its not 225/4). Australia played a bit too cautiously, which is understandable given the pitches prior to this match. If Head had got going, Australia would have definitely got 300+ today.
And I expect England to score another 80-90 runs on top (1 extra run per over) because that's how they play now. They don't freaking care about getting out! They could even be 380 all out at end of day 1. But they would definitely score the runs.
I know they don’t care how they get out, but you are just assuming they will motor along, in India…
Pakistan and New Zealand is not India at home, I can just as easily claim they’d be 150 all out off 30 overs, which is probably much more likely.
Put it this way, Australia has the best batting lineup in the world at the moment and “only” scored 4/255, so what makes you think England would have done it?
As far as the game itself, with Khawaja, Green and Carey, there’s no reason Aus can’t end their innings with a perfectly fine RR of 3+