I can't work this series out at all.
First the Poms beast us easily and then we reciprocate in the second test and then they almost beat us in two days in the third test ( perhaps they might have if Anderson was fit!)
These two teams are changing places particularly the bowlers. I do not understand how test match bowlers can be bowling a good length one test and being hit around the park the next. I maybe cynical but given the three tests thus far I would be astounded if the nest two pitches were not slow but green seamers. However given Anderson is out the Poms lose quite a bit in taking advantage of such conditions.
The Poms have problems. They have a suspect opening batsman and with Anderson out they might not have the bowlers to get Australia out twice as I do not anticipate Finn repeating his heroics although Broad is due for a large haul given his form and lack of luck thus far..
We do have problems with out middle order. Shaun Marsh in at 4 and Clarke back to his favoured no 5 would seem to be the responsible way to go.I wouldn't make changes to the bowlers as they have shown to be match winners previously.
If form is any guide Australia should win in two days at Trent Bridge and then the Poms win in one day at the Oval!