I cannot guarantee that a new Taliban will be drastically different, but I've set forth some of the reasons why...if a provocative and polarizing American military force, or even a NATO force, is clearly on the way out, it opens the issue up to domestic politics in one way.
Secondly, I do not believe that regional forces--even Pakistan, which would welcome a strong Pashtun element in the government.... Pakistan cannot afford to have another reprise of the last al-Qaeda/Osama bin Laden game. This has cost Pakistan dearly. It's cost Afghanistan very dearly, and as long as there is no longer an excuse for radical Islamists or nationalists to fight an American occupation, I think other powers can make powerful conditions of aid to a new government, which would not be entirely Taliban.
A strong Pashtun presence in the government can make very clear demands. If you want aid or support from Canada, from Russia, from China, from Europe, from anywhere, even from America, you will have to meet certain criteria. I'm fairly confident that they will act somewhat rationally in this capacity, but they will not give you mixed education, male-female schools, tomorrow. No, sir, they will not. And they will not love the United States either. But I think if we can persuade them to stop supporting international movements and focus on issues at home and try to develop the nation in more positive directions, they will not turn their back on this.