Maybe we have "old-school" military advisers on the ground working with them instead of your more typical ObaMao appointees vetted by Valarie Jarrett.
There are US Special Operators with them, probably coordinating airstrikes and gathering intel.
The French also have special forces with them, and are also conducting a significant number of airstrikes. Their aircraft carrier, the Charles DeGaulle, shot its wad on ISIS, went back to France to reload, and is fixing to drop all its ordnance again. It was scheduled to sail on Bastille Day, when the Nice terrorist attack occurred - about four days to station.
This is the Summer of Death for ISIS. Casualties are way over recruitment rates. The walls are closing in.
It looks like only Turkey going full jihadi and crossing the Syrian border in force would save them - but they might have to leave NATO for that, and Russia would hit back.
Rumors on the web the last few days say that 3 of our special force troops were killed in Manbij in a missile attack.