Think the calls for mass changes to the team are a bit over the top.
Had the game gone any longer, the way Watson and particularly Ponting were batting, we could have easily ended up 1/300+ also.
For me, Johnson stays, but they stop protecting him by bowling him first change. Give him the new pill, and tell him to let rip. 4-5 over bursts at full speed.
If he doesnt know where its going to land, it'll be just as hard for the batsmen. I'm a Hilfy fan, but maybe time to give Harris a look in while he is fit (only a matter of time before he breaks down again, so might as well get some overs out of him now).