Whats lacking is the will. The sunni cover by saudi arabia and qatar is needed for every crackdown. Or theyre in the palestinian or syrian refugee camps and they judge its better to observe them than to risk mayhem.
When turkey wants to shut down isis they will. They know all its networks there and all the ways their weapons and supplies get there and the money and oil.
The americans and saudis and turks are still saying its not time to cooperate with russia over isis yet. They fattened the isis goose and now they want the right price for its head. For most of them its still assads head and the others arent willing to pay it yet.