Doubtful. NATO failed to defeat the Taliban even during the surge. Which saw the heaviest fighting and the highest death toll. And the Taliban managed to topple the American installed government within weeks of NATO's withdrawal. Another thing that I think the western media/officials fail to grasp is that it seems the Taliban are actually pretty popular with the Afghans.
For instance look at the attitudes that Afghan women have towards husbands beating their wives:
Informing a Smarter World
www.prb.org
So 94% of uneducated Afghan women think that it is ok for a husband to beat his wife in some circumstances. However what is perhaps even more surprising is that 79% of EDUCATED afghan women think that it is acceptable for a husband to beat his wife. If you look at the other countries listed (Bangladesh, Nepal etc..) you will see that far fewer educated women think that this is acceptable.
I recall reading about an anthropologist who visited Afghanistan in the 1950s or 60s. This was at a time when Afghanistan was less conservative (or perhaps less fanatical/fundamentalist) than it is today. He recorded numerous instances of women complaining because their husband DID NOT beat them. As apparently this shows a man is not "masculine" enough. Completely different culture. What is "barbaric" to Westerners is "acceptable" or even "desirable" to them.