The Arab League is watching Syria

This is a critical time for Syria --in 48 hours The Arab League is sending observers in to see how the "cease-fire" is going. If the it falls apart, the Arab League leadership has said they will go to the UN Security Council. But the question is if the UN is called upon, does it have what's necessary to put together a plan of intervention. And what will Iran do? Syria is a key ally for the Iranians when necessary. Another question is if the Assad regime falls, what will replace it?