Name one war that was won in modern history by capturing the leader???
Do Panama and Grenada count?
Name one war that was won in modern history by capturing the leader???
I see what you are saying, but the fact that the mission statement has been changed from bringing justice to those who facilitated 9/11 to what has become a nation building campaign makes your question unanswerable.
Had we killed or captured OBL when Delta forces were within a few hundred meters of his location, then the US could have dropped a copy of the US Constitution off in Kabul and pulled out, declaring victory.