I think that a socialized Yeshiva system would be the best way to get a quick start on improving things. First of all, it uses economies of scale. Second of all, the central management team running the larger institution would be better qualified (i.e. more financially sophisticated) than the individuals who currently run individual institutions.
To illustrate my point, let’s say I am one who believes in gedolim. Then I would be glad to send my kids to a school under the auspices of the Moetzes Gedolai Yisroel of America. The umbrella organization would be the Agudah, and they would handle tuition and budgetary issues. The gedolim would make “executive decisions” instead of local boards and the local institutions would need only the minimum of on site administration. Naturally it is more complicated than this, but I am just trying to paint a picture.
I don’t think that all yeshivos would be under one umbrella organization; it is likely that many groups wouldn’t want to be under the Agudah and would form their own central organization. But I could go to any “Agudah” school in the country and know that they are being run by the gedolim of the Moetzes.