There are two "new" schools of thought currently competing for attention beyond the normal stuff you list above.
First is one proposed by William Lind in 2004, called the doctrine of punitive expedition. Basically you hit back hard, protect areas of stability but leave everything else to the locals. You don't do any sort of occupational tasks, no counter insurgency, no nation building, no promoting of democracy etc. You just hit back 10x harder than they hit you, make sure any "good guys" have enough stuff to secure themselves and leave.
This link from 20 years ago is much more detailed:
PARAMETERS, US Army War College Quarterly - Summer 1995
The other one is to simply force the regional countries to defeat daesh, while moderate Imams reform their religion away from jihad. This is then coupled with long term strengthening of education throughout the area. The idea is to educate enough average joes (well, haji's) so the jihadi influence of civic leaders and imams is reduced to a manageable level.
There Is Only One Way to Defeat ISIS
The problem with these approaches is on the one hand, we aren't comfortable with breaking things without sticking around to fix them. We also have trouble understanding things from the view of the locals and mess up when we try to identify the right people to keep in power.
On the other hand, the regional militaries aren't really in a position to be able to defeat daesh, otherwise they would have already. Plus it would take another Saddam type person to really pull that off, and we seem to have an issue putting new dictators in power. Also,educational initiatives take generations to take hold and we are very impatient. New schools don't fill the 24 hour news cycle the way bombings and welcome home ceremonies do...
I think a combination of these could be effective. But we would need to be willing to put a lot of pressure on the stable governments in the region using the entire D.I.M.E. set of tools (I'm looking at you Saudi Arabia and Jordan). It would look something like:
1. US and NATO led or backed coalition of as many ME nations as possible that slowly squeezes the life out of daesh.
2. Simultaneously, maintain a strike force in the area that is set to respond to any attacks outside of the region. Another Paris type event would mean an immediate violent response with boots on the ground for long enough to destroy a city, but not long enough for them to make a concerted effort to retaliate. Think Marines in Ramadi without the occupation afterwards..
3. ME partners work with local Imams to find and support moderate and peaceful leaders, while identifying the jihadis and removing them from power.
4. As areas are settled down, the emphasis goes to local infrastructure for life, health and safety first, followed by developing educational infrastructure and programs. All of this is done by host nation, local leadership etc. Even if we are paying the bills, we put a host nation face on every effort to get buy in.
5. The other thing is no outside contractors for host nation projects. All infrastructure construction etc, is done by host nation labor. If you find you don't have enough skilled labor, you take the time to develop it internally, but with internal people. You could take some of them to a neighboring country for training, but everything is led and done by host nation folks.
My :twocents: