Whose Mission Accomplished?

Having just finished reading Lawrence Wright's excellent book, The Looming Tower, I have to ask, whose mission was accomplished when we invaded Iraq? From what that book tells of bin Laden's murderous and somewhat delusional 'plans', it would seem that his mission was accomplished!

Bin Laden's plan was to strike America with mass-murderous blows so as to provoke a violent response, This would, he believed, involve us in a ruinous conflict overseas that would bleed us dry and destroy our society, leading to the complete collapse of the USA and its dissolution into fifty separate, anarchic states. This is the level of Al Quaeda's political thinking - pure fanatical gibberish. Once they get past the mass murder part, they're on pretty shaky ground. Bin Laden thought that getting the USA involved in a guerilla war somewhere, oh, Iraq will do, would ruin us the way that Afghanistan had ruined the USSR. It's clear that he knew little about the USA or the USSR, and is not capable of making informed judgements about them. Unlike many of his terrorist cohorts, he had never even visited the States even when he was wealthy and could move about freely.

On the other hand, although his utimate goal is clearly not within reach - Iraq is not going to shake the USA to pieces - he has met some of his objectives. He provoked a violent response that has whipped up more fanatical anti-American fury. He has gotten a tyrannical-secular-mass murderer opponent, Saddam Hussein, knocked off. He has seen Iraq turned into a possible seed-bed of a some sort of Islamist state. Oh, and American troops have left Saudi Arabia, one of his principle goals. Not too bad for a guy in a cave in the mountains of Afghanistan. Smashing his supporters, the Taliban, was a severe blow to his organization. Loosing our heads and invading Iraq played right into his hands.