Those who complain about the course of the Libya intervention are being impatient or cynical. The intervention has saved Benghazi and other eastern cities from falling to Gaddafi's tanks and jets. It has allowed Ajdabiya to be restored to rebel hands. It has allowed Misrata, Zintan, Yafran, Naluf and other western cities to hold out against vicious attacks by Qaddafi loyalist armour...
I think there is actually some benefit to the war not ending quickly with a swift eastern conquest of the west with Nato backing. That may be what happens in the end. But in my view it would be preferable for the elites in Tripoli to gradually be pushed back and surrounded and put under such pressure that they turn on Gaddafi and declare for Free Libya. That way you don't have a permanent group of losers, like the Sunni Arabs in Iraq, who would tend to make trouble in the medium term if not the long term.