His reaction to getting dropped from the England side was regrettable, but since then he has focused on playing as much cricket as possible and that should be appreciated.
It was a breath of fresh air having KP around at Surrey, and it was obvious to everyone at the club that he was a rejuvenated man.
Any international cricketer will tell you that it is one of the hardest things to do to turn your attention from England to county duty, and it takes humility and focus to do so.
It is never the same to play in a county match as it is to compete in a Test match or a one-day international, but you need to be determined and show some application.
Pietersen has been a model professional at Surrey, and has taken great pride in everything he has done; I have received great feedback from guys in the camp about his contribution.
The attitude has been to play as much cricket as possible ahead of the Ashes series in November, and it is great to see an England player take a step down to improve.
When an international batsman is out of nick, you have two options: to take a mental break from the game entirely and recharge the batteries, or to attempt to play yourself back into form.
Pietersen has also signed up for duty for South African franchise the Kwa-Zulu Natal Dolphins in October, and that is another very wise move.
In representing the provincial side in two four-day matches from October 7-17, KP has effectively agreed to inconvenience himself and his original plans to relax ahead of the Ashes, in the pursuit of form and rhythm with the bat.
I have the utmost respect for the way that Pietersen has just got his head down and focused on scoring runs and playing cricket: he deserves to recapture the form which made him one of the best batsmen in the world, and I am sure he will.
England desperately need KP to be firing in the middle order alongside Jonathan Trott and Paul Collingwood Down Under, and Australia will be very wary of the batsman playing himself back into nick just in time to fill his boots on the hard wickets there.
Everyone in English cricket will be desperate to see the old KP return, and a few confidence-boosting knocks should give him the fillip required to get back to where he was before his very damaging Achilles injury.
Courtesy: Yahoo! Eurosport UK