The latest legal challenge to the state's school finance system diverges slightly from the previous four. Texans for Real Efficiency and Equity in Education has filed a suit challenging not how much the state of Texas provides for public education, but how the money is used. The suit also recommends that the state lift the cap on the number of charter schools it allows. Because the group wants to promote competition, the suit also proposes that public school systems be governed by the same rules as charters, which are exempted from minimum employee salaries, class size limits and enrollment requirements. The four lawsuits already pending against the latest school funding formulas charge that the state has inadequately funded education.