In recent years there has been an explosion in the number of trans-denominational/non-denominational community schools designed to service the spectrum of the Jewish community without making any of their students feel like they were (borrowing from a phrase popularized by a dynamic Rabbi from the NY area) "not yet Orthodox." These schools have been embraced by many, but not all, Central Agencies and visionary groups, as opening the doors to a population that would not otherwise attend day schools.
Interestingly, in some communities, the local Federation was against the institution of these schools - fearing that they would drain money and students from existing schools without generating a substantive increase in enrollment.
One school, questioning why their enrollment was falling far short of their projected numbers, came to the conclusion that they were too religious, and that they could only attract students by becoming less religious. (Note: their Jewish studies component consisted of one period a day of Jewish studies plus prayer.) It's hard to know if lessening the Jewish studies will or will not increase the enrollment in the school, but even the enrollment doubles or triples in the next two years, is it worth the investment of untold millions of dollars of Jewish communal funds to pay for what amounts to Jewish private schools with minimal Jewish content?