We should wholly destroy them and their network. Call in more carriers, more drones, more bombers if need be. Seal up their routes to escape and take advantage of them congregating to dismantle them. US boots on the ground don't work, but we must give the fighting advantage to their enemies and our putative allies. (<this does not include the vast majority of the Syrian groups we've been helping)
Not even Special Forces?
Eh, very small numbers that you wouldnt know about, if need be. Those to guide the airstrikes and prevent blue on blue incidents. You need a whole bunch of support personnel anytime you field people in significant numbers. So Special Activities Division, maybe Delta- low profile, small footprint.