The New York Times' Roger Cohen calls for efforts that would weaken the Syrian military enough to force Assad's departure:
I agree with Brahimi that there is no military solution. Syria, with its mosaic of faiths and ethnicities, requires political compromise to survive. That is the endgame. But this does not mean there is no military action that can advance the desired political result by bolstering the armed capacity of the Syrian opposition, leveling the military playing field, and hastening the departure of Assad essential for the birth of a new Syria. Assad the Alawite will not go until the balance of power is decisively against him. ...
It is time to alter the Syrian balance of power enough to give political compromise a chance and Assad no option but departure. That means an aggressive program to train and arm the Free Syrian Army. It also means McCain’s call to use U.S. cruise missiles to destroy Assad’s aircraft on the runway is daily more persuasive.