If We Leave, What Do We Do With Our People?

Ya know what our policy in Afghanistan is now? Well let's start back a few years. Like eleven. Our policy has been to wipe out Al Qaida and the Taliban and build a strong central government to protect the country. That was then. Now our plan has gone from there to, forget the central government because there's no hope for it, so let's concentrate on the regional and local governments. Well tell me, how is that working out? Not so good. Our current strategy is "see what's good enough". Like, give it a try and whatever happens, "good enough". Now I'm not speaking of strictly military action. There our goals are still the same and we still keep taking out the opposition forces and leadership. My question is, if our goals are "good enough" when it comes to winning the hearts and minds of the people and their leadership, and the best we can get is "good enough", isn't it time to say "good enough" and pull out?I mean if we can't help them build a stronger government to protect them from incursion and subversion, then why are we wasting our time and riches and people for no reward down the road. I've heard projections of anywhere from ten years to never, when it comes to building a government able to protect it's population. Can we afford or justify that kind of commitment?  Cause if we can't, what are we doing there? I don't suggest the kind of retreat we saw in Viet-nam, but we need an orderly removal as qiuckly as possible. Then we need to reaccess our policy on the middle east. And on the military. And on how we decide when and where and how to go to war. Here's another thing. When we bring all those troops home, how many do we keep in the military and how do we train those who will be leaving the service? The reason I ask is because we already have all the unemployed we need and then some. We don't need more unemployed  people whose training happens to include killing the opposition. We need to train them how to perform a more useful trade.  Has anyone given any thought as to how to do this?