There's no other way to interpret this:
He was speaking in Britain — America’s close ally in Afghanistan — a day after he had participated by video link from London in a White House strategy session on the war that included President Obama, Vice President Joseph R. Biden Jr. and an array of senior advisers.
General McChrystal was asked by a member of an audience that included retired military commanders and security specialists whether he would support an idea put forward by Mr. Biden to scale back the American military presence in Afghanistan to focus on tracking down the leaders of Al Qaeda, in place of the current broader effort now under way to defeat the Taliban.
“The short answer is: no,” he said. “You have to navigate from where you are, not where you wish to be. A strategy that does not leave Afghanistan in a stable position is probably a short-sighted strategy.”
He did not mention Mr. Biden by name.
Right now the White House is engaged in a strategic review of its options in Afghanistan and Pakistan. That review has just gotten underway and is expected to take some time to complete, but McChrystal's statement, if left as is, narrows the range of possible options. The statement is an attempt to tie President Obama's hands by publicly announcing which strategic goals are acceptable and which are not. If Obama decides to support Biden's idea, then Republicans will seize on McChrystal's statement as proof that Obama is undermining American security.
McChrystal must retract his statement or be removed from his position. If SecDef Gates lets this slide, we'll end up with a decades-long commitment to a war for no reason other than the generals like fighting it.