I'm not sure I'm convinced. In seven tours of working in or alongside the CJSOTFs in Iraq and Afghanistan, I have yet to see one that I felt was capable of running the kinds of operations that are necessary to win a large-scale protracted conflict. It would take a major long-term restructuring of the way the CJSOTFs do business for them to be able to field a staff competent enough to run a major theater conflict- they're not set up to run those types of operations.
The CJSOTFs I saw (which admittedly wasn't every one, but it was a lot of them) all had the same general characteristics- spectacular success at the very bottom (ODAs) and very top (command group) but an extremely weak supporting cast in between, especially on the enabler side. CJSOTFs draw most of their manpower from SF Groups, which typically lack the kinds of depth and expertise in fields like logistics and intelligence that are essential in long-term conflicts. Where would you get the bodies to field that kind of expertise? Where do you get your fire support and your air? If the answer is, "put all the conventional units with that stuff under the CJSOTF," then maybe we need to re-flag the 1st, 3rd, 5th, 7th, 10th, 19th, and 20th as Divisions instead of Special Forces Groups, because that is what they would all start looking like.
More to follow, have to run.