Here's my understanding -- which is pretty much the same as "futbol(soccer)". This is a three-step process:
1) A district must be selected by the SCYSA. (I believe this is done on a rotating, or at least semi-rotating, basis.)
2) Fields must be located. This typically must involve a club since clubs have a tendency to own, or at least have rights to, fields.
3) Volunteers must be found. This typically must involve a club since clubs have a tendency to have volunteers.
Last year, as I understand it, the SCYSA selected the upstate district, CESA volunteered its fields, but CESA couldn't find enough volunteers with the tournaments it runs and thus the SCYSA had to provide the volunteers.
I don't know what's going on in the Coastal region this year. My guess -- and it's only a guess since I'm not at all involved in last year's stuff or this year's -- is that the financial package that is put together by the SCYSA to reward the club (I think they get to sell ads in the program or something like that) isn't sufficient to get anyone to want to go through the enormous hassle of granting fields and raising volunteers. I have heard something about "rent" with regard to the fields -- but I've heard it's trivial.
But I don't know the financial details -- all of the financial speculation is just conjecture.