The motivation behind the law is to provide incentives for banks to address problems while they are still small enough to be manageable. Spong (2000, pages 90–95) summarizes the details (http://www.kansascityfed.org/publicat/bankingregulation/RegsBook2000.pdf).
The goal of this legislation is to encourage banks to address issues early on, before they become too large and difficult to manage. Spong (2000, pages 90–95) provides a detailed explanation of the law's specifics in his work (http://www.kansascityfed.org/publicat/bankingregulation/RegsBook2000.pdf).