Maybe we should all prepare ourselves for what is commonly referred to as...mission creep, the eventual insertion of American boots on the ground and we're right back where we started in Iraq.

Several reasons this is a distinct possibility. The Iraqi army, for the most part, sucks. Kurds are far and few in between, the so-called "free Syrian army" won't be much help. On the other hand, the fanatics of ISIS are well funded, well motivated, number over 30,000 and growing...and well equipped (mostly with our own weapons).
I believe ISIS was some 30 miles from marching into Baghdad before Obama ordered in the air strikes that halted their advance.