The result was a Sunni revolt in both Syria and Iraq. Unfortunately, that Sunni revolt grew into I.S.I.S. which later named itself the Islamic State.
Now, the Islamic State has to be stopped, both for the sake of a livable Middle East and for the sake of safety in the West and the United States. Fortunately, a lot of the Arab world agrees that they must be stopped and, if I understand it correctly, they are against them.
The U.S. is slowly and reluctantly using force against them, but Obama's hope all along seems to have been that Iraq would oust Maliki and move to win over the more moderate Sunnis to join in the opposition to the Islamic State. My most desired outcome is that this is what happens, and that with U.S. assistance (and little if any American boots on the ground), Iraq can pull together more moderate Shia and Sunni forces to strengthen Iraq and drive out the Islamic State.
I want the Muslim world to reject and renounce the Islamic State. Perhaps Maliki's resignation is a step in that direction.