The WSJ editorial says Gen McChrystal may bring the qualities of flexibility and imagination, and intellect, the way General Petraeus did to the war in Iraq. It says Defense Secretary Gates did well with President Obama to bring achange of leadership to the American effort to bring security to the Afghan people from the Taliban militants. It was the leisurely way the NATO effort proceeded under Gen. McKiernan in building the Afghan army- the only remaining institution that commands confidence in the country - that WSJ faults for having gone on too long. The other institutions like the corrupt police, and the failing government of Hamid Karzai, along with the spread of opium farming in the south have led to further deterioration in security.