Brett Lee required minor surgery on his technique to stem the flow of no-balls and a lot of it got back to work in the nets and some tinkering with his delivery.
Generally, it is not a train smash with these things. It is a couple of little things that go a long way to getting rhythm and confidence and then with that bowlers enjoy a good line and length and don't deliver no- balls.
Two weeks ago Lee was the target of Australian fans' frustrations. After his performance on Sunday, the blond speedster is a hero again - although not in the minds of the Indian batsmen who had to face his thunderbolts on the fast WACA wicket.
On the surface the transition over the past fortnight has been dramatic but in reality it has not required mammoth changes to the way Lee operates.
I've known Lee since he was a raw but genuinely quick 16-year- old and when he rang me late last month for advice, I already had a few ideas on what could be done to get him back on the right bowling track.
Overstepping the line was a problem for Lee during the third and fourth Tests when he registered 37 no-balls. But, like many fast bowlers I see around the country, I put Lee's no-ball problems down to what happens in the practice nets.
No-balls are a big bugbear for me. It was the main thing I was very aware of when I was bowling and as a coach I'm hot on bowlers doing the right thing at practice.
Every time I saw Lee bowling in the nets he was over the crease - not just over but miles over and no orphan in that regard.
It is in the nets where bowlers get their rhythm, they get their confidence and that is where and why they should be bowling legitimate balls.
I suggested that the day before a match and again in the morning before the start of play Lee does at least an extra 10 minutes of work bowling legally off his long run.
I believe that method has played a major part in his turnaround.
During a series of telephone conversations, we discussed an idea to slightly strip back his action. We decided that he needed to be more open in his delivery - not fully open - but he was bowling a bit across his body with his left leg and left arm.
I encouraged Lee to work on getting into the semi side-on position. This enables him to pull down and through with his left arm a lot better. It gives him much better rhythm and the result is much greater pace.
Most of the time, it is the little things that make a big difference to fast bowlers.
Keeping the front foot behind the popping crease in the practice nets, a bit of tinkering with an action or even a small increase in fitness work can quickly turn around a paceman's fortunes.
With the benefit of hindsight, Lee was rushed back into the Australian line- up far too early for his own good following ankle surgery in October.
Australia was in desperate need of Lee's input in the Test series with India due to the absence of injured pair Glenn McGrath and Jason Gillespie and also Shane Warne.
But fast bowlers cannot be fast- tracked in their fitness programs. For Lee it was akin to going into a Test match with little of the correct pre-season work behind him.
He could not find his rhythm in the Tests and had to bowl on low and slow wickets against Indian batsmen who love those conditions.
Lee was also bowling down on speed at about 130 to 135km/h. He is at his best when he is bowling at the top end of his range. That makes him what he is.
He is not a huge swinger or cutter of the ball and when he bowls at the low speeds he comes back to the pack.
From what I saw at the WACA ground Lee now has everything back in shape. He will have gained a lot of confidence but more importantly he will realise the Indian batsmen are now a little unsure about his bowling and are wary of what he may produce.
I have no doubt that in the mental warfare, he again has the upper hand.
- ROSS LEWIS