I can imagine, but cannot specify, a set of targets which would truly weaken and frighten Assad without having large consequences among the population at large. But I have no idea what these targets are or if we are capable of executing such a thing, or if we are even committed to such a specific plan. Evil begets evil.
To understand this new war just look at a map – Turkey, Syria, Iraq, Iran, Afghanistan, Pakistan. There is the order of things. We are now at the center.
If this is not done right, we are in for the whole show. (Is that what they have in mind?). If it is not done, then the chaos we have created will spread all by itself. If what is done has no real effect, then the chaos will be worse.