Here's my op-ed that uses long-term orientation, probabilistic thinking, numeracy, consider the alternative, reaching our actual goals, avoiding intuitive emotional reactions and attention bias, and other rationality techniques to suggest more rational responses to the Paris attacks and the ISIS threat. It's published in the Sunday edition of The Plain Dealer, a major newspaper (16th in the US). This is part of my broader project, Intentional Insights, of conveying rational thinking, including about politics, to a broad audience to raise the sanity waterline.
There are boots on the ground, it's just that they are not Western. Having Assad, the Kurds, and the Iraqi government finish off ISIS weakened by air strikes looks like an acceptable solution to me.
Most likely, Assad (with Russian help) will finish everyone else first.
Russia's goal is to have Assad as the winner, and they will optimize for that. Fighting against ISIS would be a waste of resources for them -- other countries will do that for them, so they can focus on the remaining Assad's enemies.
And the other big players know that. This is why the situation is so difficult to solve, although in theory it should work just as proposed (weaken ISIS by bombing, and let their enemies do the rest).