Capturing/disabling OBL was never an objective; it was desirable, but not an objective. Who knows, it may have been done - we haven't heard from him in 3 months. As far as nation building goes, I would partially agree with you. Afgansitan was already in a war before US troops arrived, we simply tilted the scales to favor the N.Alliance. There seems to be little objection to the change in power.
Where would we get these hackers and professional soldiers that you mentioned? Why would we use them instead of a small Delta Force contingent? Are they ready to go now, or would they require a couple of months of preparation? Who is accountable if they fail, or if they take too long? What would be their objective? How will they function in a manner that doesn't interfere with the internal affairs of Afganistan? How completely could they eliminate the problem of terrorism so that we would not have a reoccurrance of the WTC?
I ask these questions not to put you down. I believe that it may be a viable solution in the Iraqi situation. However, the Afgan situation required an immediate response and a show of force in a situation where the objectives were unclear because we lacked adequate intelligence.
And this is due to military intervention? That is a convenient thing to say but it is hardly based on any factual evidence.
The goal was to bust up Al Quaeda and capture bin Laden. So far we've done everything but and have managed to sacrifice many American soldiers and by many estimates thousands of civilian non-combatants.
That's not success in my view.
Why does this matter to you? As to your other questions, the talent is abundant. The privateers could have probably gone in and captured key operatives within Al Quaeda in short order and without loss of civilian lives.
Furthermore, they get their remuneration from the property they sieze.
The requirement for obtaining a letter of Marque (basically a license to steal) is a bond which insures that if they get the wrong target or commit crimes under color of authority, they will be held financially responsible if not criminally liable for acts that are committed outside the bounds of their authority.
It's far more efficient. The military has had 6 months. It doesn't take private militias that long to get ramped up and they can travel with more security and secrecy than any large military force.
And as to using Delta forces....the very idea behind the Delta force was counter-terrorism and yet I haven't seen even the slightest mention of Delta force involvement.