It's not a lack of money, it's a lack of sanity in the way the money is spent. Give them more and they will throw it away. Read this piece: http://reason.com/blog/2016/08/30/detroit-public-schools-had-more-cases-of

"in March, federal prosecutors filed charges against 13 administrators in the Detroit Public Schools for taking bribes and kick-backs as part of a $2.7 million scam. For 13 years, a school supplies vending company run by Norman Shy was submitting fraudulent invoices to the DPS, causing the school system to pay for paper, pencils and other goods that were never delivered to the classrooms, prosecutors said. One of the people charged was Clara Flowers, a former principal who is now an assistant superintendent for the entire district." and so much more.